The appearance is small and elegant, with a simple black square design. This device allows users to sit up to 10 meters away and easily wirelessly transmit, play, and control audio from Bluetooth-enabled devices such as smartphones, tablets, or MP3 players. It supports wireless transmission of all audio files from any connected Bluetooth device.The standard 30-pin line output port can be directly connected to a speaker base or an audio line input port. The output level ensures full power audio performance without the need for additional line amplification.By connecting or disconnecting different transmitting equipment, users can switch audio sources wirelessly without plugging or unplugging cables, eliminating the hassle associated with traditional audio setups.This device frees users from cable constraints, allowing them to enjoy high-fidelity music anywhere in the room without placing the audio source within one meter of the speaker.Supports Bluetooth 5.1 protocol specifications. Supports A2DP profile and device authentication. Automatically identifies compatible audio devices. Transmission range is up to 10 meters. Interface: standard 30-pin connector. Two indicator lights flash alternately when no connection is active; blue light flashes slowly once connected.Product Instructions: Brand: I-WAVE Turn on the speaker and plug the product into the docking station. The front and rear LED lights will begin to flash, indicating pairing mode and normal operation. Since the device is factory-set to automatically reconnect, ensure it is powered on before pairing with a Bluetooth device.Once in pairing mode, enable Bluetooth on your computer, smartphone, or other Bluetooth-enabled digital device. Search for available Bluetooth devices and select "I-WAVE" to connect.After successful pairing, the Bluetooth indicator lights will flash slowly, confirming a successful connection. You may now stream audio wirelessly.During normal use, to switch to another playback device, disconnect the current Bluetooth connection from the source device (e.g., phone or computer), 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 between the item color shown and actual color. Measurement tolerance is +/- 13 cm.