Fearture: Equipped with Bluetooth 5.0 chip, stable transmiion without delay, and lole sound quality;Bluetooth receiving and transmitting two-in-one, no driver, plug and play;LCD high-definition digital display, Bluetooth mode and working status are clearly visible;The launch mode can display the pairing name, actively search, and refuse to connect blindly (this function is the first);Built-in 170mA polymer battery, continuous listening to songs for about 4H, USB direct plug charging/power supply;Support TF card playback, as well as card reader and computer external sound card;Built-in high-definition microphone, support hands-free call/listen to music/navigation;Memory function, automatically reconnect after the first pairing;Stable transmiion of obstacle-free signals about 10 meters; Specification: Bluetooth Version: Bluetooth V5.0Supporting protocols: V5.0 EDR,A2DP,HSP,AVRCPBluetooth distance: 10M (empty place)TX mode connection: 3.5MM stereo interface/USB stereo interfaceRX mode connection: 3.5MM stereo interfaceRX Mode With Mic:Support Handfrees CallingMusic time: About four hoursCompatible: Android, IOS system phone and PAD, and all Bluetooth audio devices, audio devices with audio inputBasic Functions: Bluetooth receive/transmit, TF card play, navigator voice play, key operationsLCD digital display Packing list 1x Bluetooth Audio Adapter1x 3.5 Audio Cable1x Used Manual1x Retail PackageNote:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightne of your monitor and light brightne.