... Hifi audio amplier, your best music partnerItem: DAC 2 Functional unit dedicated to you, connecting to computer, mobile ... . Asynchronous Sample Rate Converter (ASRC),jitter–free clock.2. VECTRON crystal oscillator, phase noise <-90dBc at10Hz<-160dBc ... 20HZ-20K +-0.3dBBluetooth transmission range--- 10MBluetooth Frequency----- 2.4G ISMBluetooth Channel--------- FSHHAbout US:Gavin Electronics Co.,Ltd, is ...