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:o High-definition Soundo Premium Memory Foam & Genuine Leather Ear Cupso Superior Battery Lifeo Braided Fabric Shielded Cableo Foldable for Portability, Includes Travel Case for Storageo Continuous Audio Even after Battery Depleteso Detachable Cable for Cordless Noise Cancellationo Gold Plated 1/4" Stereo Plug Adaptero Gold plated Airline Dual-plug Adaptero Trilingual Packaging (English/Spanish/French)Specificationso Bluetooth Version: 4.1o Bluetooth Chipset: CSR8645 w/apt-Xo Noise Cancellation Rate: 85%o Speakers: 40mm Neodymiumo Audio Impedance: 32 Ohmso Charging Time: About 3.0 hourso Charging: Micro USBo Cable Length: Detachable 4.8 feeto BT Operating Range: < 10 mo Connection: 3.5mm jacko Battery Time (Bluetooth Only): 15 hourso Battery Time (Noise Cancelling Only): 30 hourso Battery Time (Bluetooth + Noise Cancelling): 12 hourso Battery Type: Rechargeable Li-PolymerCompatibility:Apple iPhone 6s ,iPhone 6s ,iPhone 6s Plus ,iPhone 6s Plus ,iPhone SE ,iPhone SE ,iPhone 7 ,iPhone 7 ,iPhone 7 Plus ,iPhone 7 Plus ,iPhone 8 ,iPhone 8 ,iPhone 8 Plus ,iPhone 8 Plus ,iPhone X ,iPhone X ,iPhone XR ,iPhone XS ,iPhone XS Max ,iPhone SE (2020) ,Samsung Galaxy S8 ,Galaxy S8 ,Galaxy S8+ ,Galaxy S8+ ,Galaxy Note8 ,Galaxy Note8 ,Galaxy S9 ,Galaxy S9+ ,Galaxy Note9 ,Galaxy S10e ,Galaxy S10 ,Galaxy Fold ,Galaxy Note10 ,Galaxy Note10+ ,Galaxy S20 ,Galaxy S20 Plus , Galaxy S20 Ultra