After wearing the Naztech i9 BT Active Noise Cancelling Headphones for the first time, you'll never want to take them off! Crystal clear quality delivers opulent sound through these first-rate headphones that feature a completely wireless design with profound Bluetooth connectivity capabilities and a conveniently built-in rechargeable battery. Appreciate acoustic accuracy with the full-spectrum circuitry or simply sit in peaceful silence with spectacular active noise cancelling properties. Auditory Excellence!

Features: • High-definition Sound
• Premium Memory Foam & Genuine Leather Ear Cups
• Superior Battery Life
• Braided Fabric Shielded Cable
• Foldable for Portability, Includes Travel Case for Storage
• Continuous Audio Even after Battery Depletes
• Detachable Cable for Cordless Noise Cancellation
• Gold Plated 1/4" Stereo Plug Adapter
• Gold plated Airline Dual-plug Adapter
• Trilingual Packaging (English/Spanish/French)

Specifications • Bluetooth Version: 4.1
• Bluetooth Chipset: CSR8645 w/apt-X
• Noise Cancellation Rate: 85%
• Speakers: 40mm Neodymium
• Audio Impedance: 32 Ohms
• Charging Time: About 3.0 hours
• Charging: Micro USB
• Cable Length: Detachable 4.8 feet
• BT Operating Range: < 10 m
• Connection: 3.5mm jack
• Battery Time (Bluetooth Only): 15 hours
• Battery Time (Noise Cancelling Only): 30 hours
• Battery Time (Bluetooth + Noise Cancelling): 12 hours
• Battery Type: Rechargeable Li-Polymer