Specification
Name: Active Noise Cancelling Wired/Wireless Headphones with Microphone
Input terminals: DCФ3.5DC Plug
Working voltage: 3.7V
Maximum output power: 90MW
Noise level : 18-20db
Signal to noise ratio (SNR): ≥ 90db
Power supply: 200mA lithium battery Rated
Operating time: ≥30h
Noise reduction modes: dual-microphone noise feedback