V7 HB600S Mode D'emploi page 8

Battery Status: After the headset is powered on, press the call button
briefly 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.
Bluetooth version: Bluetooth V5.0
Bluetooth Profile: A2DPv1.3.1; AVRCPv1.6; HFPv1.7;
HSPv1.2; SPP v1.2; DID v1.3; HID v1.1; PXP v1.0.1;
FMP v1.0; BAS v1.0
Working Frequency: 2.402GHz-2.480GHz
Frequency Response: 99±3dB
Receiving sensitivity: >-89dBm
Battery type: Lithium polymer
Mic type and sensitivity: Virtual Microphone -42±3dB
Headphone Driver Size: 30mm
Battery capacity: 410mAh
DC Input: 5V_500MA
FCC ID: 2AKI8-19BF18
Charging voltage: 5V/2A
Bluetooth working range: Up to 30m
Talk time: Up to 18 hours
Charging time: Approximately 3 hours
Standby time: Approximately 175 hours
Compatibility: Windows 10, mac OS, iOS and Android
08