Active Noise Cancelling Headphones Wireless Over Ear Bluetooth Headphones Hi-Res Audio Memory Foam Ear Cups for Travel Home Office Specification: Product Name: Bluetooth Headphone Product color: Navy Material:ABS Gross weight: 0.73lbs/0.334kg Product size: 19x18x7.5cm /7.48x7.08x2.95inch Package size: 16.8x16.8x8.8cm/6.61x6.61x3.46inch Receiving distance:15m without barrier Horn size:40mm Frequency response:20Hz-20KHz Impedance:30Ω Battery capacity:650mAh Charging time:2-3h Features: High-performance wireless Bluetooth headphones in multi-colour.Folding storage ,easy to carry around Listening position,binaural stereo design,immersive game sound,with Bluetooth 5.1 chip,lower play delay. Hi-Res Audio: Custom oversized 40 mm DY-NAMIC drivers produce Hi-Res sound. This active noise canceling headphones reproduce music with extended high frequencies that Rea-ch up to 20 kHz for extraordinary Cla-rity and detail. Support multiple devices,support IOS/Android/tablet/computer/Mp4. With 650mAh battery ,24-Hour Play- in maximum volume,Standby 300mAh ,Actual battery life may vary depending on actual usage conditions. A charge gives it enough to soundtrack long flights. Ergonomic design,comfortable wearing is the standard that a good headset needs to achieve.It fits the shape of the head and is suitable for most people. All-inclusive earmuffs,physical sound insulation allows you to enjoy the pleasure brought by the world of music. lights, to turn on/off the lights,with the music playing with breathing lights,make the night more colorful. Package Include: 1 x Bluetooth Headphone 1 x USB Cable 1 x Audio Cable 1 x Instruction Manul