1. The appearance is small and elegant. The overall appearance is just a simple square. Through this device, users can sit 10 meters away and easily transmit, play and control for iTouch wirelessly via Bluetooth. Or optional audio files on the Bluetooth device. 2. Standard 30-pin line output can be directly connected to the base or audio input port, and the output level can make the audio reach full power without additional line amplification. 3. Through the connection and disconnection of different transmitting equipment, the function of wireless switching of audio source and zero plugging and unplugging can be realized, saving the trouble of plugging and unplugging the cable of traditional audio equipment to switch the audio source. 4. Release the shackles of the connecting line on the user, so that the user can enjoy Hi-Fi music anywhere in the room without having to place the audio source within one meter of the speaker. 5. Note: Only analog signal speakers are supported, digital speakers are not supported. This item is not compatible with car stereos. This item is not compatible with digital signal speakers. Product Instructions: Equipment identification: I-WAVE 1. Turn on the speaker, plug the product into the docking station. The front and rear LED lights start to flash quickly, indicating that it has entered the pairing mode and the device is working normally. Since the machine is factory set to connect automatically, please turn it on for 30 seconds before pairing the Bluetooth device. 2. After the device enters the pairing mode, turn on the Bluetooth function of the computer, mobile phone, etc., and other digital products with Bluetooth output function, and search for or find the Bluetooth device. Find the Bluetooth device for I-WAVE you want to connect to. 3. After the pairing is successful, the front and rear Bluetooth lights flash slowly, indicating that the connection is successful and you can play music wirelessly. 4. If you want to switch the playback device during normal operation, you need to disconnect the connected computer, mobile phone and other Bluetooth output devices, and then pair and connect other Bluetooth devices. If you cannot connect, please remove the product and reinsert it. Type: Bluetooth Receiver Adapter Output: 30-pin audio output Color: White Material: Plastic Size: 44 x 35 x 7 mm Package Contents: 1 x 30-pin Bluetooth 5.1 Audio Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.