OVLENG S66: Over-Ear Headphones Super Bass Wireless Bluetooth Stereo Headset Headband Noise cancelling with Built-in Microphone

Color: White/Black/Blue/Red/Beige

Bluetooth 4.1 chipset,strong bluetooth signal, operating distance up to 10 meters;superior bluetooth compatibility,compatible with all the bluetooth enabled Smartphones,Tablet PC Smart TV etc.
High Definition 40mm Speaker Drive Units, HiFi super bass and stereo sound effect.
Lower power consumption, built in 300mAh Polymer Lithium Battery, music playback time up to 8 hours
Integrated streamline structure, the surface processed by piano baking varnish technology, anti-dirt, cool dazzling appearance
Perfect human ergonomic design, adjustable headbeam, soft breathable protein earmuffs, comfortable to use

Descriptions:
Style: Headband
Bluetooth version: 4.1
Speaker driver size: 40 mm
Frequency response: 20 Hz-20 KHz
Sensitivity: 110±3dB
Support Apt-x: No
Support Memory Card: No
With Microphone: Yes
Resistance: 320Ω
Max. Input power: DC 5V
Operate Distance: about 10 meters
Battery : 300mA
Charging time(PC/Laptop): 1-1.5 h
Playback time: 4-6 h
Call time: 8-10 h
Support Music / Volume Control / Answer & Reject a Call/Adjustable structure for different needs

What's in the box:
1 x Ovleng S66 Bluetooth Headset
1 x User manual