YOULA Active Noise Cancelling Bluetooth Headphone , Wireless Headphone with MIC , Headset Over Ear for Cellphone, Stereo Headphones with Microphone and Volume Control

The best-performing over-ear headphones from BH519.
BH519 Active Noise Cancelling headphones are the best-performing around-ear headphones from YOULA. They give you crisp, powerful sound--and quiet that lets you hear your music better. They give the music you love deep, clear sound. At the same time, YOULA active noise cancelling technology monitors the noise around you and cancels it out, helping you focus on what you want to hear--whether it's your music, your calls or simply peace and quiet.
Better quiet Advanced noise reduction technology quells airplane cabin noise, city traffic or a busy office. So you can focus more on what matters-your music, movies and videos.
Free yourself from wires and noise
YOULA put years of research into BH519 wireless active noise cancelling headphones so you could get more out of them. They're engineered with advanced noise cancellation that makes quiet sound quieter and music sound better. Experience world class performance and superior comfort without any wires in your way.
Microphone Parameter
Microphone Unit: φ 4 * 1.5mm φ6 * 2.7mm
Sensitivity: -42±3dB
Impedance: ≤2.2K
Frequency Response: 30-16000Hz
Operating Voltage: 4.2V
Bluetooth Mode
Bluetooth Version: CSR v4.0
Receiver Range: >20M (without obstruction)
SNR: -92dBM
Carrier Frequency: 2402MHz-2480MHz
Transimit Power: 4dBm (max)
Specifications:
Type: Bluetooth Headphone
Model: BH519
Color: Black
Plug type: 3.5mm
Talk time: >10 hours
Charge time: 2-3 hours
Standby time: >400 hours
Item weight: Approx.195g / 6.9oz
Package size: Approx.22.5 * 21.5 * 5.5cm / 8.9 * 8.5 * 2.1in
Package weight: Approx.390g / 13.8oz
Package List:
1 * BH519 Bluetooth Headphone
1 * Micro USB Cable
1 * 3.5mm Audio Cable
1 * User Manual (English)