Airersi Model:K22 Material:Metal,PVC,Plastic,Silica GEL Width[mm]:50 Depth[mm]:70 Weight[g]:15 Height[mm]:15 Battery Capacity[mAh]:300 Battery life up to[hours]:360 Voice assistant built-in:YES Maximum wireless range[m]:20m-30m NFC Technology:No Sound Isolating:YES Category:Earphones and Headphones Earcups Type:Semi-open Max Output:300mW Number Of Drivers:2 Charging Method:cable Headphone Pads Material:Soft Foam Magnet Type:Neodymium Driver Diameter:14mm Total Harmonic Distortion:1% Impedance Range:up to 32 Bluetooth Version:5.3 Package List:User Manual,Carrying Bag,Charging Cable,Replaceable Pads Set Features:waterproof,With Microphone,Amazon Alexa Support,Apple Siri Support,Detachable Cable,Active Noice Cancelling,Dual Connection,Playback Control,Google Assistant Support Codecs:Apt-X,Apt-X HD With Microphone:Yes Is wireless:Yes Support APP:Yes Support Memory Card:No Waterproof:Yes Resistance:16 Line Length:0m Frequency Response Range:20 - 22000Hz Sensitivity:120dB Plug Type:none Function:Monitor Headphone,for Video Game,Common Headphone,For Mobile Phone,Sport,For Outdoor,For Office,For DJ Active Noise-Cancellation:Yes Volume Control:Yes Control Button:Yes Vocalism Principle:Hybrid technology Wireless Type:bluetooth Connectors:Type c Communication:WireLess Style:Ear Hook Certification:CE Origin:Mainland China Brand Name:AIRERSI Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.