TIE TQ14 Manuel Utilisateur page 6

Charging
connect the supplied uSB charging cable with the headset and a
corresponding uSB-device, such as a laptop, active uSB hub or a
powerbank. the status Led turns blue as soon as the battery is fully
charged. A warning signal sounds, when the battery capacity is low
and the LED flash red at the same time. Note: While charging the TQ14
it is forced to shut down, even if have turned it on before charging.
Vibration function
The headset vibrates in certain operation states: at the startup or
shutdown, after successful pairing, during a Bluetooth disconnection
for longer than 750 ms and for incoming calls (with a vibration interval
of 1s).
PrecAutioNS
A: Please do not use the earphone over an extremely long period, nor
put it under heavy pressure. Protect the device from moisture or heat.
B: Keep the device at a save distance from high frequency transmitting
equipment such as WIFI transmitters or routers to prevent interruptions
or interference of the received Bluetooth signal.
C: Please use this earphone within its working range (10 meters). Ideal
transmission is guaranteed when there are no obstacles between the
paired devices.
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