B39 Headset Wireless Bluetooth Headset Colorful Luminous Card-Inserting Game Music Sports Support Mobile Phone Computer

Active Noise-Cancellation: Yes
Volume Control: Yes
Control Button: Yes
Vocalism Principle: Other
Communication: Wireless Wired
Style: Over the Ear
Certification: CE
Origin: Mainland China

Product parameters
Drive unit: 40mm
Maximum power: 45mW
Frequency response range: 20-20khz
Rated impedance: 32 ω
Sensitivity: 108dB/mW
Battery capacity: 400mAh