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Mini Multi-band Radio
Bluetooth | TF Card | APP Intelligent Remote Control | SOS Alarm
User’s Manual
(Model: HRD-777)
Sustainable innovation and satisfying users’ needs have always been our company’s principle in new product R&D.
HRD-777 is a digital tuning mini multi-band/multi-functional radio produced by us with all efforts.
Please read this manual carefully before use.
Thank you for buying our product and please keep this manual properly.
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1: Outside view and functions
1-1: Functions on the front
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1-2: Functions on the back
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1-3: Buttons on the top
M
1: Time mode: Long press it to set the light.
If the radio is connected to an APP, you can double click it to exit APP connection
quickly.
2: Receiving mode: Lightly press it to go to the mode of taking a channel (see provision 8.1-8.4).
Double click it to search a stored channel automatically.
Long press it to select an EQ.
3: TF card mode: Lightly press it to select a play mode (see provision 8.6).
Long press it to go to EQ selection, and lightly press it again to select an EQ.
4: Bluetooth mode: Long press it to select an EQ (see provision 8.5).
Double click it to disconnect Bluetooth.
▲
1: Clock display status: At the position of “▲”, push it forward. When the symbol of alarm clock
appears, at the position of “▲”, push it forward again to set the alarm clock/auto
power on (see provision 10).
2: Working mode: At the position of “▲”, push it forward to reduce the volume progressively.
▼
1: Clock display status: At the position of “▼”, push it backward to set the time (see provision 9).
2: Working mode: At the position of “▼”, push it backward to increase the volume progressively.
◀
1: Set/adjust the time: At the position of “◀”, push it to the right to adjust the time.
2: Receiving mode: At the position of “◀”, push it to the right to increase the frequency progressively.
At the position of “◀”, push it to the right for 2 seconds to search a channel automatically.
In the mode of taking a channel, at the position of “◀”, push it to the right to select a channel.
3: TF card mode: at the position of “◀”, push it to the right to select the next song.
At the position of “◀”, push it to the right and hold it for fast forward play.
4: Bluetooth mode: at the position of “◀”, push it to the right to select the next song.
▶
1: Set/adjust the time: At the position of “▶”, push it to the left to adjust the time.
2: Receiving mode: At the position of “▶”, push it to the left to reduce the frequency progressively.
At the position of “▶”, push it to the left for 2 seconds to search a channel automatically.
In the mode of taking a channel, at the position of “▶”, push it to the left to select a channel.
3: TF card mode: at the position of “▶”, push it to the left to select the previous song.
At the position of “▶”, push it to the left and hold it for fast backward play.
4: Bluetooth mode: at the position of “▶”, push it to the left to select the previous song.
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2: Power ON/OFF
This product uses lithium batteries. Please charge it first before the first use.
The radio is locked in factory by default. Please unlock it first before the first use.
Lightly press “ ” and “SOS” on the left to turn on the screen and show the time display status. The lock symbol
“ ” appears on the top right corner of LCD.
In the time display status, double click “SOS” to unlock the radio.
Lightly press “ ” within 10 seconds of unlocking to turn on the radio.
Long press “ ” to turn off the radio.
3: Set the time of auto power off
In the time display status, long press “ ” to show the sleep power off symbol “ ”. Lightly press
“ ” to select the time of sleep auto power off from 90, 80, 70, 60, 50, 40, 30, 20 and 10 minutes.
The radio is turned on after two seconds of selecting the time of sleep auto power off.
After the radio is turned on, the symbol “ ” appears on LCD.
The radio will be turned off automatically at the adjusted time of power off.
4: Replacement of batteries
Push up in direction of arrow to open the battery cover and
replace the BL5C lithium batteries.
Align the positive and negative contact points of batteries
with the three contact points of battery jar and push up. Pay attention
to the positive and negative anodes. Close the battery cover.
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5: Adjust the volume
When the radio is turned on, push “ ” on the top up to increase the volume (level 32 is the max volume)
and push it down to reduce the volume (level 0 is the min volume).
5.1 Enable/disable the mute function
In the receiving mode, lightly press “ ” to enable the mute function. The symbol “ ” appears on LCD.
Lightly press “ ” again to disable the mute function. The symbol “ ” disappears.
5.2 Enable the pause/play function
In the TF card/Bluetooth mode, lightly press “ ” to enable the pause function. The symbol “ ” appears
on LCD.
Lightly press “ ” again to disable the pause function. The symbol “ ” disappears and the play symbol
“ ” appears.
6: TYPE-C USB: charge
Charge: We recommend to charge the radio with DC5V/1A-DC3A charger to prevent damage to the
lithium batteries or the radio.
If the lithium batteries are not in use for a long time, please charge them every month.
The symbol “ ” flashes after inserting the USB cable, which means it’s charging.
“ ” means the radio is charged fully. The time of charging fully is 4-5 hours.
Note: The level light on the right means battery level:
The red light is on when battery level is ≦30%
The orange light is on when battery level is >30% and ≦80%
The orange and green light are on when battery level is >80%
The level light flashes when charging.
The level light stops flashing when the radio is charged fully.
7: Symbols on LCD
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Signal intensity in the receiving mode
Electric screen in the Bluetooth/TF card mode
FM
Frequency modulation
AM
Amplitude modulation/clock display mode: Morning of 12-hour system
SW
Short wave reception
WB
Weather band reception of North American countries
PRESET
Search, store/taking channels automatically
All buttons are locked
Shuttle lock
FM mode: frequency display/Bluetooth mode: bt/TF mode: play time
Sleep symbol
Flashing means searching the Bluetooth device; stopping flashing means
the Bluetooth device connected
APP connection status
TF card play mode
Play
Receiving: mute Bluetooth/TF card: pause
Scheduled power on/scheduled alarm clock
Scheduled alarm clock
Scheduled power on
USB electricity
Charge/battery level
MHZ
Unit
KHZ
Unit
PM
Afternoon of 12-hour system
Flashing mode of decorative lights on the left and right of LCD
The light will be off automatically after 5 seconds
OFF
The light is off
ON
The light is always on
8: Receiving mode
This product supports the following working modes:
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When the radio is turned on, double click “ ” to switch between the above modes.
8.1: Listen to the radio
This product supports the following four receiving wave ranges:
How to select a receiving wave range:
In the time display status, push “ ” to the right and hold it for 2 seconds to show a number from
87.5/87/64/76 on LCD, and push “ ” to the left or right to select. The number you select finally will be the
default one.
If you select 87, the radio will receive the ranges in item 2.
When the radio is turned on, double click “ ” to switch between the bands.
Note: Unless otherwise specified, the first frequency will be the default one.
8.2: Use of antenna
8.2.1: When receiving FM/SW/WB, you pull out the rod antenna and change the antenna length to find the
best receiving position.
*Reminder: In case of channel chaos due to strong interference, please shorten the antenna.
8.2.2: You must insert the standard AM magnetic antenna to receive AM.
You can rotate the AM antenna 360º to find the best receiving effect.
Random option: T-type antenna.
Country/region
FM
AM
SW
WB
China/Europe/Korea/Taiwan
1: 87.5-108.0MHZ
522-1710KHZ (9KHZ)
4.75-21.85MHZ
/
North American
countries/Canada/Latin
America/South America
2: 87.0-108.0MHZ
520-1710KHZ (10KHZ)
4.75-21.85MHZ
162.40-162.55MHZ
Japan
3: 76.0-108.0MHZ
522-1710KHZ (9KHZ)
4.75-21.85MHZ
/
Russia
4: 64.0-108.0MHZ
522-1710KHZ (9KHZ)
4.75-21.85MHZ
/
Open the dustproof plug
and insert the standard
3.5mm T-type antenna
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8.3 Listen to FM
8.3.1 Methods of searching channels: searching channels manually, search channels automatically,
searching channels with shuttle, and searching and storing channels automatically
8.3.1.1: Searching channels manually: push “ ” to the left or right to increase/decrease the bands
progressively at the min step value .
8.3.1.2: Searching channels automatically: push “ ” to the left or right and hold it to search channels
quickly at the min step value. Stop searching after finding a channel and play it.
8.3.1.3: Lightly press “LOCK/SOS” to unlock and rotate the shuttle to select a channel.
Note: Select a channel with shuttle in FM mode. The min step value is 0.05MHz.
8.3.1.4: Searching and storing channels automatically: in receiving mode, double click “ ” to search and
store channels automatically from the lowest frequency to the highest frequency.
In the process of searching channels automatically, the address of storing a channel “CH**” (numbers mean
the address of storing a channel) appears on LCD after finding a channel. After a round of search is finished,
search will stop automatically and the first frequency stored will be played.
*Reminder: Up to 99 channels can be stored, and 297 channels can be stored in total.
8.3.2: Taking a channel
After searching and storing channels automatically according to provision 8.3.1.4, lightly press “ ”
to go to the mode of taking a channel. “PRESET” appears on LCD. Push “ ” to the left or right to
take a channel.
Lightly press “ ” to exit the mode of taking a channel. “PRESET” disappears. Now you can
push “ ” to the left or right to search channels. * “NULL” appears after lightly pressing “ ” means no
channel stored.
8.4: Select an EQ
In the receiving mode, long press “ ” to set the EQ.
“E0......E6” appears on LCD.
E0: Turn off the EQ
E1: NORMAL, E2: POP, E3: ROCK
E4: JAZZ, E5: CLASSIC, E6: COUNTRY
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8.5 Bluetooth mode
Bluetooth name: “HRD-777”
When the radio is working, double click “ ” to switch to “BT” mode.
The Bluetooth symbol “ ” flashes on LCD, which means waiting for Bluetooth connection.
After clicking on the phone to connect successfully, the Bluetooth symbol “ ” always appears.
Double click “ ” to ext the Bluetooth mode.
You can use the mobile phone or this product to control the volume or select the previous song or the next
song.
On the radio, push “ ” to the right to select the next song
push “ ” to the left to select the previous song
push “ ” backward to increase the volume
push “ ” forward to reduce the volume
Lightly press “LOCK SOS” to unlock the top and rotate the top to select a song quickly.
Play/pause: Lightly press “ ” to show the pause symbol “ ” on LCD.
Lightly press “ ” again to resume play. The play symbol “ ” appears on LCD.
EQ selection: In Bluetooth mode, long press “ ” to select from six EQs: E1......E6.
E1: NORMAL, E2: POP, E3: ROCK
E4: JAZZ, E5: CLASSIC, E6: COUNTRY
8.6: TF card play
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Install the TF card correctly and close the dustproof cover.
Insert the TF card and give priority to the songs in TF card.
Take out the TF card: By lightly pressing the TF card, it will come out automatically.
(Double click “ ” to switch to other modes. Or in another mode, double click to switch to the TF card
mode)
On the radio, push “ ” to the right to select the next song, push “ ” to the right and hold it for fast
forward
push “ ” to the left to select the previous song, push “ ” to the left and hold it for fast backward
push “ ” backward to increase the volume
push “ ” forward to reduce the volume
Lightly press “LOCK SOS” to unlock the top and rotate the top to select a song quickly.
Play/pause: Lightly press “ ” to show the pause symbol “ ” on LCD.
Lightly press “ ” again to resume play. The play symbol “ ” appears on LCD.
EQ selection: In TF card mode, long press “ ” to select from six EQs: E1......E6.
E1: NORMAL, E2: POP, E3: ROCK
E4: JAZZ, E5: CLASSIC, E6: COUNTRY
Selection of play mode
In TF card mode, lightly press “ ” to show RA, RO, RF and RR on LCD which have the meanings as
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follows:
RA: repeat all; RO: repeat one
RF: repeat file; RR: random
TF card supports up to 256G
TF card supports mp3/WMA/WAV /APE/FLAC
TF card supports up to 65,535 files
Reminder:
In case of sound vibration for reason of song source when playing the music in TF card, please adjust the volume.
When the radio is working in receiving and Bluetooth mode, if the music in TF card cannot be played, “Err”
appears. If there is something wrong with song source or the TF card is broken, please replace it with a normal one.
9: Set the running time
Lightly press “ ” or “LOCK SOS” to enable the clock display.
Push “ ” backward and hold it to enable the “hour” to flash. Push “ ” to the left or right to adjust the
hour.
Push “ ” backward to enable the “minute” to flash. Push “ ” to the left or right to adjust the minute.
Push “ ” backward and push “ ” to the left or right to select the time system: 12HR/24HR.
Push “ ” backward again to confirm the final time.
You can also correct the time in APP mode. Lightly press “ ” to correct current time
quickly.
Reminder: “12Hr” time system on LCD: “AM” means morning and “PM” means afternoon.
10: Set the scheduled power on/scheduled alarm clock
Lightly press “ ” or “LOCK SOS” to enable the time display.
Push “ ” forward to show the symbol of alarm clock on LCD. Push “ ” forward again and hold it to
enable the hour and the symbol of alarm clock to flash. Push “ ” to the left or right to select the hour.
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Push “ ” forward to enable the symbol of alarm clock and the minute to flash on LCD. Push “ ” to the
left or right to select the minute. Push “ ” forward and push “ ” to the left or right to select.
After selecting scheduled power on “Pon” or scheduled alarm clock “BU2”, push “ ” forward again to
confirm.
Differences between selecting scheduled power on “Pon” and scheduled alarm clock “BU2”:
10.1: Select scheduled power on “Pon”
Push “ ” forward to show the time of auto power off on LCD. Push “ ” to the left or right to select the
time of power off: 10, 20, 30, 40, 50, 60, 70, 80, 90 and FULL (the radio will not be turned off after being
turned on).
Note: The time of power off is calculated in minutes.
Push “ ” forward to confirm the final selection.
Note: After selecting the mode of auto power on, if the radio is working in Bluetooth mode before power off, you
should click on Bluetooth device to play after auto power on. After selecting the time of auto power off after
auto power on, the radio will be turned off at the selected time.
The symbol of auto sleep power off “ ” appears on LCD.
10.2: Select scheduled alarm clock “BU2”
Push “ ” forward and then push it to the left or right to select a ringtone: “ ” and “ ”. After selecting,
push “ ” forward to confirm.
“BU2” scheduled alarm clock: At the preset time of alarm clock, the alarm clock will ring louder and louder
for 3 minutes every 5 minutes.
By pressing “ ” and “ ”, the alarm clock will enter the nap state.
10.3: Disable the alarm clock function
Push “ ” forward to disable the alarm clock. The alarm clock symbol “ ” disappears.
11: Set the light
LCD backlight/two decorative lights on the left and right of LCD/key base light/two key lights on the
left/level light on the right
The time of turning on the above lights can be selected as follows:
Lightly press “ ” or “LOCK SOS” to enable the time display.
In the time display state, long press “ ” for 2 seconds to start the light setting. Push “ ” to the left or
right to select the light mode. The following options can be seen on LCD. The final selection will be the
default one.
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Note: In the time display state and any light mode, the screen will be off in 10 seconds and enter the power
saving mode.
12: Lock/unlock
This product has two lock switches: 1: top lock “ ”, 2: key & top lock “ ”.
12.1 Enable the top lock: lightly press “LOCK/SOS” to lock the top knob.
The top knob lock “ ” appears on LCD, now the knob is locked.
Lightly press “LOCK/SOS” to disable the top knob lock. The top knob lock “ ” disappears.
* Note: After LCD is turned on, the top knob will be locked automatically after 5 seconds in
case of no operation and will be used normally after lightly pressing “LOCK/SOS” to enable
the top knob lock “ ”.
12.2 Enable the key and top lock “ ”: double click “LOCK/SOS” to show “ ” on LCD. Now
SOS key can be used normally, while other keys are locked.
Double click “LOCK/SOS” again, and “ ” disappears.
The top knob lock “ ” disappears, now the top knob can be used normally.
13: Enable/disable the SOS alarm function
Power of emergency function: max output of SOS alarm: >3W; power of flashlight: 1W.
Enable the SOS alarm: Long press “LOCK/SOS” for 2 seconds to enable the SOS alarm.
Disable the SOS alarm: Lightly press “LOCK/SOS” to cancel the SOS alarm.
*Note: This function can be used even if the radio is locked.
14: Connect the earphone with Type-c to 3.5mm USB cable
Type-c to 3.5mm USB cable can be used to connect the radio to the earphone.
Options on LCD
Time
ON
The light is always on
All lights will be off automatically
after 5 seconds
Flash
OFF
The light is off
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15. Key technical parameters
Receiving range
FM: 64.0-108MHz
AM: 520-1710KHz
SW: 4.75-21.85MHz
WB: 162.40-162.55MHz
Receiving sensitivity
FM≦18dB
AM≦86dB
SW≦30dB
WB≦18dB
Quiescent current
≦50uA
Max current
≦800mA
Speaker
4Ω3W
Signal to noise ratio
≧40dB
Number of channels stored in receiving mode
297
Bluetooth version
VER 5.2
Bluetooth receiving distance
≤10m
Min working voltage
3.4V
External input voltage
DC5.0V
Lithium battery
3.7V
Play format of TF card
MP3/WMA/WAV /APE/FLAC
Max capacity of TF card
256G
Dimension
56x75x44mm
Weight
226g (including batteries)
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16. Matters needing attention
Please comply with the following safety tips to use this product, ensuring safe and reliable use.
♦ Read and know all safety instructions and use information.
♦ When the battery symbol “ ” appears or the frame of the symbol “ ” flashes, it means low battery level. Please charge the
battery timely to ensure normal use.
♦ Please use the charging device with input voltage of DC5V/1A-DC3A to charge the battery, or the battery or the device will be
probably damaged.
♦ If the radio is not in use for a long time, please charge it once a month.
♦ Keep the product away from rainwater and damp. Do not drop or splash any liquid onto the product.
♦ Keep the product away from high-temperature heat source. Do not bake or blow the product at high temperature.
♦ Avoid direct sunlight for a long time.
FCC Warnning:
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable
protection againstharmful interference in a residential installation. This equipment generates,
uses and can radiateradio
frequency
energy
and,
if
not
installed
and
used
in
accordance
with
the
instructions,
maycause
harmful
interference
to
radio
communications.
However,
there
is
no
guarantee
thatinterference
will
not
occur
in
a
particular
installation.
If
this
equipment
does
cause
harmfulinterference to radio or television reception, which can be
determined by turning the equipmentoff
and
on,
the
user
is
encouraged
to
try
to
correct
the
interference
by
one
or
more
of
thefollowing measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Caution:
Any
changes
or
modifications
to
this
device
not
explicitly
approved
by
manufacturer
could void your authority to operate this equipment.
This
device
complies
with
part
15
of
the
FCC
Rules.
Operation
is
subject
to
the
following
two
conditions:
(1)This
device
may
not
cause
harmful
interference,
and
(2)
this
device
must
accept
any
interference received, including interference that may cause undesired operation.
This
equipment
complies
with
FCC
radiation
exposure
limits
set
forth
for
an
uncontrolled
environment.
This
equipment
should
be
installed
and
operated
with
minimum
distance
0cm
between the radiator and your body.
