Bluetooth Audio Receiver Wireless Stereo for iPod 30 Pin Dock Speaker Black Description: 5.1 Audio Receiver: Adoptes 5.1 technology, this device allows users to transmit, play and control songs 10 meters away easily, changing the common sound box to sound box. : The standard s line output port can be connected to the base or the audio line input port directly, no need additional line amplification. Wireless Stereo: This wireless audio receiver realizes zero plugging and unplugging, and saves the trouble of cables, support A2DP V1.2, support for Lingo protocol and device authentication, support automatic identification of certified and non-certified base audio. Mini and Portable: small size, a simple black square, easy to carry, the user can enjoy HD music anywhere without having to connecting lines. How to Use: Turn on the speaker, plug the product into the docking seat, LED lights begin to flash, turn on the function of the computer, mobile phone, etc, and search or find the device, then pair. After the pairing is successful, the front and rear LEDs will flash slowly. If you need change device, you need interrupt the connected device firstly and then connect to others. Specification: Material: Plastic Version: 5.1 Power Supply: DC 5V Transmission Distance: No less than 10m (33ft) Interface: s for Ipod Type: Music Audio Receiver 2 indicator lights Not compatible with for Car Stereo System, not compatible with for Digital Speakers. Size Chart: 44x36x7mm or 1.73x1.42x0.28inch Package includes: 1 Pieces Music Audio Receiver Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.