Specifications:Model:KN322Technologies: BT5.0, A2DP, AVRCP (receiver mode only)Operation Range: Up to 10m / 33ft (without any blocking objects)Pairing name(Receiver mode ): KN322Transmitter mode: red LED light is onReceiver mode: blue LED light is onAdapterDimensions: 33mm*18mm*8.5mmAUX Cable Length: 1mFeatures:1.This extremely portable, lightweight wireless audio transmitterreceiver is an ideal wireless audio solution for a wide range ofsituations and uses.2.Transmitter mode:wirelessly streams audio from your non-bluetooth TV, home stereo system, or CD player to your bluetoothheadphones or speakers.3.Receiver mode:wirelessly streams audio from your bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers,or headphones.Mode switching:a)First plug the product into the USB port to poweron.b)When the time after power-on is within 10 seconds, you only need to re-plug once to switch modes.c)When the time after power-on exceeds 10 seconds, you need to re-plug twice to switch modes.Note:This product has been used for more than 10 seconds and will remember the mode. It will be the last mode when it is powerd on next time.Howtouse:a)Receivingmode:usedinhomeaudio,wiredheadphones,caraudio,etc.withoutbluetooth.Howtouse:Powerontheproductandconfirmthereceivingmode(bluelight),openthebluetoothsettingsinthephoneandtablet,searchforthepairingname:KN323forpairing,connectthehomeaudio,headphones,caraudiowith3.5audiocableWait.b)Transmittingmode:UseonTVs,computers,mp3s,etc.witho