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A: Location of the built-in antenna
Bluetooth communications may be disabled, or noise or audio dropout may occur under the
following conditions.
o When there is a human body between the headset and the Bluetooth device
Put the Bluetooth device in the same direction as the antenna of the headset to improve the
Bluetooth communications.
o There is an obstacle, such as metal or a wall, between the headset and the Bluetooth device.
o In places with wireless LAN, where a microwave oven is used, electromagnetic waves are
generated, etc.
The situation may be improved by changing the wireless playback quality settings or fixing the
wireless playback mode to SBC on the transmitting device. For details, refer to the operating
instructions supplied with the transmitting device.
Because Bluetooth devices and Wi-Fi (IEEE802.11b/g/n) use the same frequency (2.4 GHz),
microwave interference may occur and result in noise, audio dropouts, or communications
being disabled if this headset is used near a Wi-Fi device. In such a case, perform the following
steps.
o Use this headset at least 10 m (30 feet) away from the Wi-Fi device.
o If this headset is used within 10 m (30 feet) of a Wi-Fi device, turn off the Wi-Fi device.
o Use this headset and the Bluetooth device as near to each other as possible.
If you are listening to music with your smartphone, the situation may be improved by shutting
down unnecessary apps or restarting your smartphone.
The headset does not operate properly.
Reset the headset. This operation does not delete pairing information.
If the headset does not operate properly even after resetting it, initialize the headset.
Cannot hear a person on a call.
Check that both the headset and the connected device (i.e., smartphone) are turned on.
Turn up the volume of the connected device and the volume of the headset if they are too low.
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