BH90 Wireless Active Noise Cancellation ANC BT CSR 4.1 Headset

BH90 is a high-performance and multifunctional headset. It can be used both wired (via the 3.5mm audio cable) and wireless (via BT). With a high-quality microphone, the headset supports hands-free calls. The special speakers transmit powerful bass and perfect sound to your ears. Its artificial protein leather of earmuffs simulated human skin texture gives you long-time comfort. This stylish headset is stable, lightweight and comfortable. Built-in rechargeable 300mAh Lithium battery lasts up to 15 hours of working time. It can be charged by the included Micro USB port.

Features:
Active Noise Cancellation:
Internal and external microphones measure unwanted ambient noises, then the circuitry in the headphones generates sound at a frequency that cancels out those noises to provide active noise cancellation.
Stereo Sound Quality:
Two 40mm speakers transmit deep and powerful bass, bringing you superior sound effect. The active noise cancellation headphones make you immerse in the music world even in a loud noise environment.
Hands-free & Line-in:
It comes with high-quality built-in Microphone for hands-free calls to set your hands free. Connecting external devices (such as MP3 / MP4, etc.) without BT function via 3.5mm audio jack.
Ergonomic Design:
Adjustable headband length, foldable and rotatable soft earmuffs make it comfortable to wear and easy to storage. Skin-friendly, lightweight and comfortable on-ear headphones fit you all day long.  
Long Battery Life:
Built-in rechargeable 300mAh Lithium battery lasts up to 15 hours of working time. It can be charged by the included Micro USB port.

Specification:
Model Number: BH90
BT: CSR 4.1
Wireless transmission range: 10 meters (no obstacle)
Speaker Diameter: 40mm
Speaker Impedance: 32Ω
Speaker Frequency Range: 20Hz-20KHz
Sensitivity: 115dB
Advanced noise cancellation: about 25 dB
Battery: 3.7V/300mAh Li-ion Polymer Battery
Working Time: about 15 hours (BT only), 30 hours (ANC only), 12 hours (ANC+BT)
Charging Port: Micro USB
Charging Voltage: DC 5V
Charging Time: 2-3 hours
Standby Time: about 400 hours
Interface: 3.5mm
Color: Black with Red
Main Item Size: Approx. 20 * 15.5 * 8.5cm / 7.87 * 6.10 * 3.34in
Main Item Weight: Approx. 226g / 7.97oz
Package Size: Approx. 22.6 * 18.1 * 6.3cm / 8.89 * 7.12 * 2.48in
Package Weight: Approx. 612g / 21.58oz

Package List:
1 * ANC BT Headphone
1 * USB Charging Cable
1 * 3.5mm Audio Cable
1 * User Manual (English)