About this item HiRes Audio HiRes certification means that it can provide highresolution audio output this enables you to enjoy all the thrill and excitement of pure living sound directly to your ears Qualcomm ChipThe worlds leading Qualcomm chip provides the most stable Bluetooth connection highfidelity audio transmission and ultralow power consumption for the Bluetooth headphones Noise CancelingBuiltin ANC microphones and digital active noise cancellation algorithm eliminates noise interference improves audio quality and allows you to enjoy music and calls more attentively UltracomfortableActive noise cancelling headphones can be pressurefree worn all day thanks to their lightweight build and soft fit leather padded earcups and adjustable headband Extended PlaytimeEnjoy 50 hours of battery life on a single charge A 10minute quick charge can provide 3 hours or plug in the included 35mm audio cable to listen even longer in wired mode Aftersales CarefreeBluedee offer 100 satisfaction service and tech support please feel free to contact us via Amazon message or the service address on the manual Brand Bluedee Model Name BH200 Color Black Form Factor Over Ear Connectivity Technology Wireless