Outstanding value Foldable Handfree Calling 3.5mm Jack MIC Headphone

Plug Type: Wireless
Support APP: No
Frequency Response Range: 20-20000Hz
Line Length: None
Active Noise-Cancellation: No
Function: Monitor Headphone,For Internet Bar
Support Apt-x: No
Volume Control: Yes
Style: Headphone
Support Memory Card: No
Waterproof: No
Vocalism Principle: Dynamic
Is wireless: Yes
Connectors: USB
Sensitivity: 122±3dB
With Microphone: Yes
Control Button: Yes
Communication: Wireless+Wired
Resistance: 9Ω
Wireless Type: Bluetooth
Battery capacity: 3.7V/250mAh
Speaker diameter: 40 mm
Charging indication: Red LED light is continuously on
Successive working time: about 8 hours
Charging time: 2-3 hours
Time to market: 2017