Instructions for use: 1. Plug the product's USB port into the 5V power port, the product’s blue light will flash, plug the 3.5mm audio into the product’s audio port, and connect the speaker’s audio port externally. The speaker must be in audio input mode, turn on the phone’s Bluetooth, click Bluetooth search, Find "YET-M1" in the searched Bluetooth devices and click connect. If you don't find it, you can refresh and scan the Bluetooth. After connecting the phone, the TV will prompt, and the phone can play music and transfer it to the TV for playback. 2: Turn on the power of the TV, plug the USB into the USB port of the speaker, the USB must be an interface that can read data, select the USB input mode, plug in the product, the blue light of the product will be on, turn on the Bluetooth of the mobile phone, click the Bluetooth search, and the search Enter the Bluetooth device and find "YET-M1" and click to connect. If you don't find it, you can refresh and scan the Bluetooth. After the phone is connected, the TV will prompt, and the phone can play music and transfer it to the TV for playback. 3: When using in the car, because USB can only support some mobile phones, please connect the audio cable to use it in the car, the USB is connected to the power supply of 5V, and the 3.5mm audio is connected to the car's AUX interface classification. Use the same method as speakers Specifications: 1. Support Bluetooth : Bluetooth V 2.1+EDR 2. Power supply:USB 5V power supply 3. Output:3.5mm Audio interface 4. Distance: 5-10 meters Package Contents: 1 x Bluetooth Audio Music Receiver 1 x 3.5mm Audio Cable Note: 1.If you have any questions, Please ask our staff for assistance. 2. This Bluetooth is only suitable for speakers,and cannot be used on the car, The USB interface only provides power supply.?Transmission?: The transmission rate is 3 (Mbps), and the longest transmission distance is 10m. Note:This Bluetooth is only suitable for speakers,and cannot be used on the car,The USB interface only provides power supply. ?Portable design?: small and exquisite, portable feature allows you to carry it anywhere. ?Wireless playback?: Eliminate the trouble of wired connection. Through wireless connection and transmission, users can enjoy high-fidelity music anywhere in the room through the wireless control of the AUX port and audio cable. ?Operation is simpler?:Insert the usb bluetooth receiver and connect your device with it, the name is "YET-M1" immediately transform your device into a fashionable wireless bluetooth device. ?Wide range of applications?: used in home theaters, mobile phones, karaoke players, speakers, stages, etc.