Material:ABS,Plastic Weight[g]:280 Battery Capacity[mAh]:400mAh/1.48Wh Battery life up to[hours]:30hours Maximum wireless range[m]:<10m Sound Isolating:YES Category:Earphones & Headphones Earcups Type:Sealed Number Of Drivers:2 Charging Method:Charging case Impedance Range:from 33 to 100 Bluetooth Version:5.3 Package List:User Manual,Charging case,Charging Cable,Replaceable Pads Set Features:With Microphone,Active Noice Cancelling Codecs:AAC,sbc With Microphone:Yes Is wireless:Yes Support APP:Yes Frequency Response Range:20 - 20000Hz Sensitivity:42dB Function:for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport,For Outdoor,For Office,For Study Active Noise-Cancellation:Yes Volume Control:No Control Button:No Vocalism Principle:Dynamic Wireless Type:bluetooth Connectors:Type c Communication:True Wireless Style:In-ear Model: AirNora 2 tws earphone Audio playback:about 6.5hours(70% volume) Total audio playback:about 30hours charging time:about 1hour Battery Capacity 1:35mAh/0.135Wh(headphone) Battery Capacity 2:400mAh/1.48Wh(charging case) Accessories:type-c cable(white),translucent dual color*4