Brand Name: cowin 

Style: On-ear 

Vocalism Principle: Dynamic 

Control Button: Yes 

Active Noise-Cancellation: Yes 

Communication: Wireless+Wired 

Volume Control: Yes 

Sensitivity: 85dB 

Is wireless: Yes 

Function: For Mobile Phone 

Function: HiFi Headphone 

Impedance Range: up to 32 Ω 

Model Number: E7 

Frequency Response Range: 20 - 20000Hz 

With Microphone: Yes