Type:active noise cancellation bluetooth headphone
Speaker Unit: Φ40mm
Magnet: Neodymium
Sensitivity: 110+/-3dB
Impedance:32 ohms+/-10%
Frequency range:20~20KHz
Active cancellation: -23dB
Power: 3.7V 360mah
Blue-tooth version:CSR 5.0
operation distance:10m
Continuous working time:12 hours