ONLY FIT APPLE dock station. Interface: 30pin<br />Package Include:<br />1x Bluetooth Stereo Audio Receiver Adapter <br /><br />Feature:<br />-100% new and high quality.<br />-Bluetooth Stereo Audio Receiver Adapter design for dock station.<br />-Simple・ plug in the speaker audio input cable to use ordinary speakers instantly become Bluetooth speakers.<br />-High sensitivity・ high-performance Bluetooth chip<br />-Compact・ user-friendly design・ easy to carry and beautiful.<br />-For  iPhone・ ipod・ ipad・Bluetooth mobile phones・ Bluetooth Calculator・ and all any other Bluetooth-enabled digital products.<br />-Plug this receiver into dock station・ the music will be transmitted to dock stationyour mobile phone which have Bluetooth stereo function.<br />-Plug and play・ it does not need extra power.<br /> <br />Connecting:<br />-Turn on the dock station before plugging the receive.<br />-Then set the audio source to mobile.<br />-Finally plug the receiver into the dock 30 pin connector port and the receiver will start to flash blue and red alternately.which means the device starts to work normally.<br />-After it enters paring mode・ Search bluetooth devices or new devices to connect it. Password input for paring is needed・ and the default password is: 0000. <br />- After successful paring・ the red LED lamp will turn off and the blue LED lamp will flicker slowly・ which means it has been connected already. Then we can play music by player. <br />-To change the play