TZS First AUSTRIA TP-BF01 User Manual page 11

Battery Status: After the headset is powered on, depress
and hold the call button 2 seconds to hear the current
battery status 100% -75%-50%-25%.
Clearing the pairing: While the headset is powered on,
press and hold the previous and next track buttons
simultaneously for 10 seconds. A pink LED will light for
2 seconds and the headset will then enter pairing mode.
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