COWIN E7 Active Noise Cancelling Headphones Bluetooth Headphones with Mic Deep Bass Wireless Headphones Over Ear(Black)

<p>COWIN E7 Active Noise Cancelling Headphones have a powerful Active Noise Cancelling Function. Significant noise reduction for travel, work, and anywhere in between. Advanced active noise reduction technology quells airplane cabin noise, city traffic, or a busy office, makes you focus on what you want to hear, enjoys your music, movies, and videos. NFC pairing aided by voice prompts promises a quick and stable connection with your Bluetooth-enabled devices, Powerful Bluetooth Function.</p>

• Professional Active Noise Cancelling Technology: Significant noise reduction for travel, work and anywhere in between. Advanced active noise reduction technology quells airplane cabin noise, city traffic or a busy office, makes you focus on what you want to hear, enjoy your music, movies and videos. Noise cancellation function can work well both in wire and wireless mode.
• Proprietary 40mm Large-aperture Drivers: Deep, accurate bass response. Active Noise Cancelling around-ear headphones from COWIN give you crisp, powerful sound and quiet that helps you enjoy your music better. Goal that provide customers with better sound quality, is our constant pursuit.
• High-quality Built-in Microphone and NFC Technology: COWIN E7 provides high-quality built-in microphone for hands-free calls, Which is convenient for you to free yourself from wires. NFC pairing aided by voice prompts, promises quick and stable connection with your Bluetooth enabled devices, powerful Bluetooth function.
• Professional Protein Earpad and 90 Swiveling Earcups: More durability and comfort, Enjoy high-quality, Long-listen comfort. Skin texture, lightweight comfortable around-ear fit you can wear all day long. Gentle Reminder: please take off headphone every 2-3 hrs to get your ears relax, in order to get better hearing enjoyment, and keep head comfortable. 
• 30 Hours Playtime Per Charge at Bluetooth Mode: A built-in 600mAh battery won't allow your headphones power off, you can enjoy your world without noise for 30 hours' long time. Don't need to worry  power shortage problem on long travel. 18-month warranty and quick response & friendly customer service. Note: Exclusive authorized seller is COWIN.
• Item Weight: 13.6 oz
• Impedance: 16
• S/N: 85dB
• Frequency: 20Hz-20kHz
• Noise Reduction Depth: 28db
• Bluetooth: V 5.0?NFC
• Sound: 40mm large-aperture drivers
• Playtime: 30 Hours
• Power supply: Lithium battery or Micro cable Audio source: iPhone, iPad, Samsung, Blackberry, Nexus, Smartphone, Computer, PC, Notebook, MP4, MP3, etc
• Function spec: Bluetooth, Microphone, AUX, Active Noise Cancelling
• Cowin E-7 Active Noise Cancelling Bluetooth Headphone
• Charging Cable
• 3.5mm Audio Cable
• User Guide