Microphone
Microphone Unit: Φ4.0 x 1.5mm
Directivity: Omni-directional
S.P.L: -42dB±3dB
Operation Voltage: 2V
Impedance: ≤2.2 kΩ
Speaker
Speaker Diameter: Φ40mm
Impedance: 32Ω
S.P.L: 97dB±3dB
THD: <3%
Frequency Response: 20Hz-20KHz
Bluetooth
Bluetooth Version: V4.1
Distance: 10m/5m between the primary and the secondary headphones.
Transmission Range(Hz): 2.402GHz-2.48GHz
Support Profile: HSP/HFP/A2DP/AVRCP
Pairing Name: AUSDOM AH861
Battery
Battery Type: Built- in 400mAh rechargeable lithium battery
Charging Port: Micro USB 5V/1A
Running Time: About 18-hour talking time/About 20-hour music playtime
Charging Time: About 2 hours
Operating Temperature: -10℃-45℃