Feature:1. Music Receiver (Wireless): A high-tech wireless device that can receive mobile phones or other audio devices with wireless connectivity to enjoy high-quality music in the office or in the car.2. Wireless Playback: Eliminate the hassle of wired connection, through wireless connection and transmission, users can enjoy high-fidelity music through wireless control anywhere in the room.3. Portable Design: Small size with clip, portable function allows you to take them anywhere.4. Compatible Devices: Compatible with home audio or 3.5mm audio input speakers, car audio equipment, headphones, universal machine, can make and receive calls.5. Simple Operation: Just connect the speaker/headphones to our device, instantly turn the speaker/headphones into a stylish wireless speaker/headphones. Descriptions: A high-tech wireless device that can receive mobile phones or other audio devices with wireless connectivity to enjoy high-quality music in the office or in the car. Simply connect the speaker/headphones to our device, instantly turn the speaker/headphones into a stylish wireless speaker/headphones. Specifications:Size: 58*13*13mm Wireless: V4.2Connectors: 3.5mm Jacks Type: AdapterColor: Black Package Included:1 Set * 3.5mm Wireless Transmitters Note:1. Please allow 0-1 inch of bl