Bluetooth2.1 Wireless 30pin Adapter For Docking Station 30pin Loudspeaker Black Description: The operation is simple, you just need to plug in the speaker audio input cable and you can use it, and the ordinary speaker instantly becomes a bluetooth speaker very long reception distance, up to more than 20 meters in open and undisturbed areas High sensitivity, high-performance chip, ultra-low power consumption and long time of continuous operation Miniaturized, user-friendly design, easy to carry and beautiful Suitable for Bluetooth mobile phones, Bluetooth computers, iPhone, iPad, MID and all other digital products with Bluetooth function Specification: Model: IP02 Interface: 30 pins Whether plug and play: plug and play External power supply: no external power supply Transmission speed: 4Mbps Effective working radius: 20m Bluetooth standard: 2.1 Working frequency: 2480 MHz Material: ABS plastic; Size chart: 4.3 x 3.5 x 0.8 cm / 1.69 x 1.38 x 0.31 inch The package includes: 1 piece Bluetooth Adapter