Models available as: Dual ear or Mono - with charging dock and without charging dock Bluetooth version: V5.2 Chipset: AB1561 Transmission power: Class 2 Impedance: 32ohm +15% Operating distance: 15 meters Frequency: 2402MHz~2480MHz ISM Band Microphone sensitivity: -45dB (0dB=1V/Pa, 1KHz) Microphone horn size: 27mm Product weight: 45g (variable depending on the model supplied) Battery capacity: 180 MAH Talk time: 20 hours Standby time: about 220 hours Working voltage: 3.3~4.2V Charging voltage: 5V Charging current: 80mA Charging time: less than 2 hours Charger power supply: 110-240V Operating systems compatibility: Windows/MAC/Linux Software compatibility: Skype, Zoom, Microsoft Teams and other video conferencing software
