8Mute function• Press and hold the [VOLUME +] button (5) for approximately 2second during a call to mute the microphone (4). The call will beput on hold, but your conversation partner will not be able to hearyou.• Two short tones sound in succession.• Press the [VOLUME +] button (5) again to unmute themicrophone. Two short tones sound in succession.5.5. Volume control• Press the [VOLUME -] button (6) to reduce the volume.• Press the [VOLUME +] button (5) to increase the volume.5.6. Disconnecting the headset• Switch the headset off.• Disconnect the headset via the Bluetooth® settings on your terminaldevice.5.7. Battery level• If the battery level is low (< 20%), the headset beeps every 60seconds, and the status LED (3) flashes red twice.• Press and hold the [VOLUME -] button (6) for approximately 2seconds to find out the current charge level of the battery. Thestatus LED (3) indicates the battery’s charge level:The status LED lights up blue for approximately 3 seconds: > 60%A voice says, ‘Battery Level High’.The status LED flashes blue three times: 60% – 20%A voice says, ‘Battery Level Medium’.The status LED flashes red twice: < 20%A voice says, ‘Battery Level Low’.• Charge the headset as described in 4. Getting Started.NoteHowever, the talk and standby times may vary when used withdifferent mobile phones or other compatible Bluetooth® devices,usage settings, usage styles and environments.