CSR8635 V4.1 active noise cancellation ANC bluetooth headphone

Speaker Unit: Φ40mm

Magnet: Neodymium

Sensitivity: 90+/-3DB

Impedance:32 ohms+/-10%

Frequency range:20~20KHz

Active cancellation: 20~25dB

Power: 3.7V 500mah

Blue-tooth version: V4.1

operation distance:10m

Continuous working time:15 hours