Product features: Product Name: EB01 Bluetooth Audio Receiver Output interface: 3.5mm Bluetooth version: 5.0 Bluetooth name: EB01 Transmission distance: obstacle free 10 meters Line length: Unstretched 35, stretched 110cm 1. Adopting Bluetooth version 5.0, compatibility, stability, and response speed are better than previous versions The 2.3.5mm plug can be connected to audio devices such as cars and sound effects without Bluetooth through the AUX interface, making it equipped with Bluetooth function Compared to FM Bluetooth transmitters, signal transmission through AUX port is more stable and faster Bluetooth connection is simpler (because FM Bluetooth transmitter is a mobile phone that connects to the transmitter through Bluetooth, and then the transmitter connects to the car's speaker device through FM frequency modulation. There is an additional relay, and frequency modulation is easily affected by radio interference. However, this is a mobile phone that connects to the receiver through Bluetooth, and the receiver is directly connected to the audio device through wire, so the transmission signal is better and the connection is simpler) 4. Anti current interference circuit design, effectively isolating the 'squeaking sound' caused by current, making the sound quality more pure 5.0.35-1 meter spring wire, made of high rebound TPE material, can be freely retracted without deformation, anti winding without disorder, easy to store and use 6. Support hands-free calls and release both hands to make driving safer. Built in high-definition noise reduction microphone for clear and echoless incoming calls 7. Accessible straight 10 meter transmission 8. USB direct power supply, no need to worry about low battery power and battery life 9. Gold-plated 3.5mm plugandenameled copper wire core, not afraid of oxidation, further improving sound quality 10. Memory connection, after the first connection, the next boot can automatically pair and connect all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.