Bluetooth V2.0 and compatible with V1.1 and V1.2 standards One-hand operation Noise reduction and echo suppression technology Frequency: 2.4G Transmission distance: 10M Microphone sensitivity: -45DB (0DB = 1V / Pa, 1KHz) Talk time: 8 hours Standby time: 200 hours Charging time: less than 8 hours Charging current: 80MA Charging voltage: 5V Working voltage: 3.3-4.2V Compatible with Bluetooth wireless transmitters Please note: suitable for voice calls only – does not support playing music Operating systems compatibility: Windows/MAC/Linux Software compatibility: Skype, Zoom, Microsoft Teams and other video conferencing software
