Product Features：

• Long Endurance：About 25 hours battery life, fully charged
• Flexible Usage: Supports wired/2.4G/Bluetooth connection playback, Wired and wireless, flexible to use.
• Key Control very convenient: Press the physical button on the left earmuff at will Mastering all kinds of adjustments.

Specifications:

• Speaker Size: 50mm
• Impedance: 32Ω+-15%
• Sensitivity: 105+-3db
• Frequency Range: 20HZ-20KHZ
• Microphone Size: 6.0*2.7mm
• Microphone Sensitivity: 105+-3dB
• Control Button: Yes
• LED Working Voltage: DC5V+-5%
• Working Current: ≦180mA