30-pin music docking station adds Bluetooth. Plug and play, no more operations, save your old dock, enjoy music wirelessly. Support any version of for iOS and Andriod devices. The transmission distance can reach 10m. Wireless Bluetooth connection reduces cable clutter around the docking station The biggest advantage of the receiver is to restore the sound quality of your own sound, do not change the sound quality Play your favorite songs on your device via wireless Bluetooth connection Simple operation, insert the base-type audio (or base connection audio cable), ordinary speakers instantly change Blue speakers. Colour:black Material:ABS Size:4.8 x 4.6 x 1cm Package Contents: 1 * 30-pin Bluetooth adapter Only the above package content, other products are not included. Note: Light 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 +/- 1-3cm.