Vocalism Principle: Dynamic
Control Button: Yes
Active Noise-Cancellation: Yes
Communication: wireless
Volume Control: Yes
Style: Ear Hook
Sensitivity: 122±3dBdB
Wireless Type: bluetooth
Is wireless: Yes
Line Length: Nonem
Support APP: No
Connectors: USB
Support Memory Card: No
Resistance: 9ΩΩ
Waterproof: Yes
With Microphone: Yes
Music Playtime: about 32 hours
Call time: about 42 hours
Standby time: about 240 hours