Vocalism Principle: Dynamic 

Control Button: Yes 

Active Noise-Cancellation: Yes 

Communication: Wireless 

Volume Control: Yes 

Sensitivity: 100DBdB 

Wireless Type: Bluetooth 

Is wireless: Yes 

Line Length: Nonem 

Support APP: Yes 

Function: For Mobile Phone 

Function: HiFi Headphone 

Function: Sport 

Connectors: None 

Model Number: BOSE SoundSport Free 

Codecs: Apt-X 

Support Memory Card: No 

Resistance: 32ΩΩ 

Waterproof: Yes 

Frequency Response Range: None 

With Microphone: Yes