Mini and portable design. Easy to use by connecting directly via 30-pin dock to transform your speakers into a fashionable wireless Bluetooth speaker. Enjoy long-distance playback of your favorite music from your device through a Bluetooth connection. Complies with Bluetooth 2.0, supports A2DP V1.0, V1.2, V2.0, V2.1, V3.0, and V4.0; plug and play functionality. Experience borderless, wireless music. Enjoy high-fidelity o indoors with wireless control. Color: Black Package List: 1 x Bluetooth Music o 30-Pin Receiver Interface/Port: Standard 30-pin interface Output: 30-pin o output Transmission Rate: 3 Mbps Transmission Distance: Greater than 10 meters Bluetooth Name: DL-LINK Password: 0000 Item Size: 4.2 x 3.6 x 0.8 cm / 1.65 x 1.41 x 0.31 in (L x W x H) Item Weight: 11 g / 0.38 oz Operation Steps: 1. Turn on the stereo and insert the device into the dock. If the blue and red LED lights blink rapidly, the device is in pairing mode and functioning properly. 2. Enable Bluetooth on your computer, mobile phone, or other Bluetooth-enabled device. Search for the Bluetooth name "DL-LINK" and enter the password 0000 to pair while in pairing mode. 3. After successful pairing, the blue light will blink slowly, and wireless music playback will be enabled. 4. To switch to a different o source while in use, disconnect the current device and pair with another Bluetooth device. If connection fails, remove and reinsert the device into the dock.