Hi-Fi audio quality :Bulit-in ultra Hi-Res CS43130 32bit/384KHz DAC,Bluetooth and additional SRC,Audiolab wireless headphone amplifier amplifies audio source for HiFi quality performance(32bit 384K),provides you wireless,lossless and leveled up Hi-Fi audio quality. Multiple operating systems compatible:Compatible with multiple operating systems,such as IOS/MAC,Android and Windows.Instantly connect it to your headphone via bluetooth,turn your headphone into wireless.Bluetooth range is up to 20m that gives better freedom move around both indoor and outdoor. Bluetooth receiver function :Connect it to home audio systems and car speaker with 3.5mm audio cable,turn any home sound systems and car speaker into a high performance wireless paltform.Stream music from your bluetooth-enabled device. Easy operation :Plug-in your headphones to Audiolab and pair it to your smartphone via Bluetooth,then you can enjoy music with the highest level of clarity.Control your music with rotary switch controller without ever having to handle your phone. Wireless charging :Charge for 2 hours via 3w fast wirless charger and enjoy the 8 hours continuous music playback.Support charging whlist listening music.Also charge for Iphone X/8/8 plus.