TUINYO TU-816 Bluetooth Headphones, Wireless Headphones Over Ear with Microphone, Foldable & Lightweight Stereo Wireless Headset for Travel Work TV PC Cellphone -apricot

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Overview

The TUINYO Bluetooth Headphones (Model TU-816) are wireless over-ear headphones with a built-in microphone. They feature a foldable, lightweight design and are available in an apricot colour. The headphones support both wireless Bluetooth and wired 3.5 mm audio connections.

TUINYO Bluetooth Headphones, wireless over ear, apricot colour, folded view

What’s in the Box

  • TUINYO Bluetooth Headphones (TU-816)
  • 3.5 mm audio cable (detachable)
  • Protective EVA carrying case
  • Charging cable (USB)
  • User manual

Product Features

Bluetooth 5.0 Connectivity

Advanced Bluetooth 5.0 ensures a fast and stable connection with compatible devices. The wireless range is up to 33 feet (10 metres).

Dual Mode: Wireless & Wired

The headphones can be used wirelessly via Bluetooth or in wired mode using the included 3.5 mm audio cable. When the battery is depleted, simply plug in the audio cable to continue listening.

Built-in Microphone & Controls

Control buttons are located on the ear cup frame for convenient hands-free calling, music playback, and volume adjustment.

Comfort & Design

The ear cushions are made of super soft memory-protein foam leather, designed for long-lasting comfort. The headband is adjustable and padded. The headphones are foldable for easy storage and portability.

TUINYO headphones ear cushion close-up showing soft foam material

Battery & Charging

  • Battery capacity: 450 mAh
  • Music playtime: up to 15 hours
  • Charging time: approximately 2.5 hours (fast charging)

Additional Functions

  • Built-in FM radio
  • TF/Micro SD card MP3 mode – insert a card with music files to play directly on the headphones

Getting Started

Charging the Headphones

  1. Connect the included USB charging cable to the headphones.
  2. Plug the other end into a USB power source (computer, USB wall adapter, etc.).
  3. The LED indicator will show red while charging and turn off (or change colour) when fully charged.
  4. Full charge takes approximately 2.5 hours.

Power On/Off

  • Power On: Slide and hold the power button for 2–3 seconds. The LED indicator will flash blue.
  • Power Off: Slide and hold the power button for 2–3 seconds. The LED indicator will turn off.

Bluetooth Pairing

  1. Ensure the headphones are powered off.
  2. Press and hold the power button for about 5 seconds until the LED indicator flashes red and blue alternately. The headphones are now in pairing mode.
  3. On your device (smartphone, tablet, laptop, etc.), enable Bluetooth and search for available devices.
  4. Select “TUINYO TU-816” from the list.
  5. If prompted, enter the PIN “0000” or confirm the pairing request.
  6. Once connected, the LED will flash blue slowly.

Using the 3.5 mm Audio Cable (Wired Mode)

  1. Plug one end of the included 3.5 mm audio cable into the headphone jack on the left ear cup.
  2. Plug the other end into the audio output of your device (phone, computer, TV, etc.).
  3. The headphones will automatically switch to wired mode. No battery power is required.

Controls & Indicators

Button Functions

  • Power/Multi-function button: Power on/off, play/pause, answer/end calls, reject calls (press and hold).
  • Volume + / Next track: Press to increase volume; press and hold to skip to the next track.
  • Volume – / Previous track: Press to decrease volume; press and hold to go to the previous track.

LED Indicator

  • Flashing red and blue: Pairing mode
  • Flashing blue slowly: Connected via Bluetooth
  • Solid red (while charging): Battery charging
  • Red flashing (when in use): Low battery

Use Guide

Listening to Music

  1. Pair the headphones with your device via Bluetooth or connect using the audio cable.
  2. Press the play/pause button to start or stop music.
  3. Use the volume buttons to adjust the sound level.
  4. Press and hold the volume buttons to skip tracks.

Making and Receiving Calls

  • Answer a call: Press the multi-function button once.
  • End a call: Press the multi-function button once.
  • Reject an incoming call: Press and hold the multi-function button for 2 seconds.
  • Redial last number: Press the multi-function button twice quickly (if supported by your phone).

Using FM Radio

  1. Ensure the headphones are powered on and not connected via Bluetooth (or disconnect Bluetooth).
  2. Press the multi-function button twice quickly to switch to FM radio mode.
  3. The headphones will automatically scan and store available stations.
  4. Use the volume buttons to navigate through saved stations.
  5. To exit FM mode, press the multi-function button twice quickly again.

Using TF/Micro SD Card (MP3 Mode)

  1. Insert a TF/Micro SD card containing MP3 music files into the card slot on the headphones.
  2. The headphones will automatically switch to MP3 mode and begin playing music from the card.
  3. Use the control buttons to play/pause, adjust volume, and skip tracks.

Specifications

ModelTU-816
Bluetooth Version5.0
Wireless RangeUp to 33 feet (10 metres)
Battery Capacity450 mAh
Music PlaytimeUp to 15 hours
Charging TimeApproximately 2.5 hours
Driver TypeDynamic driver
Frequency Response20 Hz – 20,000 Hz
Headphone Jack3.5 mm
Weight0.74 pounds (approx. 336 g)

Safety & Care

  • Do not expose the headphones to extreme temperatures, moisture, or liquids.
  • Clean the ear cushions and headband with a soft, dry cloth.
  • Store the headphones in the provided protective case when not in use.
  • Do not attempt to disassemble or modify the product.
  • Use only the supplied charging cable to avoid damage.

Troubleshooting

ProblemSolution
Headphones not powering onCharge the battery for at least 30 minutes, then try again.
Cannot pair via BluetoothEnsure the headphones are in pairing mode (LED flashes red/blue). Turn off other Bluetooth devices nearby. Reset the headphones by turning them off and on again.
No sound in wireless modeCheck that the volume is turned up on both the headphones and the connected device. Ensure the headphones are paired and connected.
Poor sound quality or staticMove the connected device closer to the headphones (within 33 feet). Avoid obstacles between the devices. Try switching to wired mode.
Microphone not workingEnsure the headphones are selected as the audio input device on your phone or computer. Check that the microphone is not blocked.
Cannot chargeTry a different USB cable and power source. Ensure the charging port is clean and dry.

Warranty & Support

This product is covered by a 12-month warranty from the date of purchase. For warranty claims, support, or inquiries, please contact TUINYO customer service through the official TUINYO store on Amazon or via the contact details provided in the product packaging.

Manufacturer: TUINYO

Reference file: TUINYO TU-816 Bluetooth Headphones, Wireless Headphones Over Ear with Microphone, Foldable & Lightweight Stereo Wireless Headset for Travel Work TV PC Cellphone -apricot

Specifications

TUINYO TU-816 Questions and Answers

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