KN318 BT 5.1 Audio Receiver Adapter 3.5mm AUX Jack USB Dongle Music Portable Wireless BT Adapter For Car PC TV Headphones

Built-in microphone,when connected to the mobile phone BT,hands-free calls are supported,which is very convenient to use in the car., BT5.1 technology,lower power consumption,more stable audio signal transmission,the use distance of less than 10 meters.There is no built-in battery,and it is powered by DC 5V usb interface., USB AUDIO OUTPUT MODE-If the device supports USB audio output function,plug and play,no need audio cable.AUX AUDIO OUTPUT MODE-AUX mode requires an audio cable to link the product and audio equipment., With the included 3.5mm cable,this Receiver Transmitter adapter can widely be used on your computer,laptop,home stereo system,headphone,smartphone,Mp3 player,CD player,etc., The Mini portable KN318 just 32mm (1.26") across and weighs only 3.2g (0.11oz),but has got powerful wireless audio streaming capabilities.