Hands-Free calling is becoming a requirement. Waterproof with active noise-cancellation, you can wear these just about anywhere.
Two variations: One with touch control and one without
Both variations: the charging case can act as an emergency power supply to charge cell phone
Control Button: Yes
Active Noise-Cancellation: Yes
Wireless Type: Bluetooth
Communication: Wireless
Vocalism Principle: Dynamic
Volume Control: Yes
Frequency Response Range: 20-20000Hz
Function: For Mobile Phone
Sensitivity: 123dB
Is wireless: Yes
Plug Type: Wireless
Codecs: AAC
With Microphone: Yes
Resistance: 32Ω
Waterproof: Yes
Support APP: No
