DescriptionDescription:Type: HeadphoneTransmission distance: 10mBattery capacity: 400mAhSensitivity: 105 3dbSpeaker diameter: 40mmPlaying time: about 10hStandby time: about 120hCharging time: about 2hBuilt-in microphone: YesSupport TF cardCharging port: USBSong switching: supported (short press the function key)Volume adjustment: support (long press the function key)Answer the call / hang up the call: support (short press the function key)Audio I / O interface: supportedSpecifications:Use ultra-thin smart casing to save in ultra-low power consumption modeActive noise reduction can block external noise, allowing you to immerse yourself in musicTransparent mode for listening and interacting with the world around youSpatial audio dynamic head tracking provides cinema-like sound surrounds youCompute audio combines custom acoustic design with Apple H1 chip and software to bring a breakthrough listening experienceDesigned with knitted mesh mask and memory foam ear pads, it fits perfectlyEasy setup, head detection and seamless switching between devices bring a magical experienceActive noise reduction and spatial audio support, 20 hours of listening, watching movies or talking timePackage Included:1*Headphone1*Charging cable1*Instruction