The appearance is small and elegant, featuring a simple black square design. This device allows users to wirelessly transmit, play, and control audio from Bluetooth-enabled devices such as smartphones, tablets, and other digital players. It supports wireless audio transmission up to 10 meters. The standard 30-pin output port can be directly connected to compatible audio input ports or docking stations. The output level ensures full power audio output without the need for additional line amplification. By connecting and disconnecting different transmitting devices, users can switch audio sources wirelessly without plugging or unplugging cables, eliminating the need for frequent cable handling. The device frees users from the constraints of wired connections, allowing high-fidelity music playback anywhere in the room without placing the audio source within close proximity to the speaker. Supports Bluetooth 5.1 protocol, ensuring stable connectivity and efficient power usage. Features include support for standard Bluetooth audio profiles and automatic recognition of compatible audio devices. Transmission range is up to 10 meters. Interface: standard 30-pin. Two indicator lights flash alternately when no connection is active; a slow blue light flash indicates a successful connection. Product Instructions: Brand: I-WAVE To begin, turn on the speaker and plug the device into the docking station. The front and rear LED lights will flash, indicating pairing mode and normal operation. The device is factory-set to automatically enter pairing mode upon power-up. Once in pairing mode, enable Bluetooth on your smartphone, computer, or other Bluetooth-enabled device. Search for available devices and select "I-WAVE" to connect. After successful pairing, the Bluetooth indicator lights will flash slowly, confirming the connection. You may now stream audio wirelessly. During normal use, to switch to a different playback device, disconnect the current Bluetooth connection from the source device, then pair with the new device. If connection issues occur, remove and reinsert the unit. Note: - Supports analog speakers only; not compatible with digital speakers. - Not compatible with car stereo systems. - Color: black - Material: plastic - Size: approximately 44 x 35 x 7 mm Package Contents: 1 x Bluetooth Receiver Transmitter Note: Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement error allowed within +/- 1-3 cm.