Brand Model: AUSDOM ANC8
Speaker sensitivity: 95dB
Speaker impedance: 322
Frequency response range: 20Hz- 20,000Hz
Battery type: built-in 400mAh lithium battery
Charging time: about 2 hours
About 20 hours of talk and 20 hours of playback (no noise reduction)
Running time: about 18 hours of talk and 18 hours of playback (with noise reduction)
Product size: 173(L)x90(W)x185(H)mm