Specifications Hign-concerned Chemical:None Support Memory Card:Yes Support Apt-x:No Support AAC:No Model Number:WK9 Package:Yes Feature:None High Definition Support:None Content:AUDIO WIFI Standard:None Wireless Type:Bluetooth Sound Track:Double Interface:3.5 MM,USB Origin:Mainland China Certification:CE Tebe FM Stereo Bluetooth 5.0 Receiver Transmitter with TF Solt LCD Screen Aux Wireless Audio Adapter USB Dongle For PC Headphone 1.Bluetooth 5.0 chip with LED digital screen,easy to check the working status. 2.Bluetooth receiver,bluetooth transmitter,FM transmitter,TF card player,USB card reader,External sound card 3.Support AUX+FM output 4.FM frequency rang is 87.5-108MHZ,stable signal, no noise and no interference 5.Support Card Reader,which can perform data copy and other operations on the computer 6.External sound card function 7.Bluetooth effective transmission distance is 10 meters; 8. Built-in high-quality decoding chip, high-definition stereo sound quality (supports similar product sound quality comparison); 9. Product color: white / black Package List: 1*Bluetooth Audio Adapter 1*3.5mm Aux cable 1*User Manual