Product Description This Smof 30 pin Bluetooth Receiver allow you to listen to music wireless,just plug it in your 30 pin dock speaker Turn your normal NO Bluetooth sound system into a Bluetooth enabled receiving device. What's the Specifications Bluetooth Version V2.0 Support A2DP,AVRCP Bluetooth Frequency 2.402 2.480GHz Music Formats SBC,MP3,AAC How to USE 1.Connect the Bluetooth receiver to the 30 pin dock speaker 2.Enable the Bluetooth function of your cellphone 3.Search for the device name"I link"and pair to it 4.If successfully paired,you can play your favorite music wireless PLEASE NOTE If your speaker can charge iPhone3/4 or iPod touch through the 30 pin dock, and then this 30 pin Bluetooth receiver will work Compatible Speaker(BUT not limited to) Bose SoundDock 10, Bose SoundDock II, Bose SoundDock PortableAltec Lansing iM600, iM7, iMT325, iMT620, iMT810, T612Beats by Dr. Dre Beat by Dr. Dre, BeatboxEdifier M360, M35, M0, MKII Cyber Acoustics CA461 Geneva Sound System Model LHarmon Kardon Go Play StereoJBL On Stage 3, On Stage 4, On Beat, On Beat Air, On Time 200P, On Time MicroLogitech S135i, S315i, S715i, Pure Fi Anywhere 2, Pure Fi Anywhere, S 0001, S135i, S315i, S715iMemorex MA9010MSOnkyo DS A4 Philips DC320/37, DCB291, DCB293, DCB352, DCD132, DCM2020, DCM230/37, DS1100, DS1200, DS3000, DS3510, DS7700Polk HD Radio I SonicSkullcandy Skull Candy pipe, Vandal S7LACZ 04Sony AIR SW10Ti, ICF 7iP, ICF C05iP, ICF C1iPMK2, ICF CS10iP, RDP M15iP, RDP M5iP, RDP V20iPYamaha PDX 11,PDX 13, TSX 70,TSX 130PHILIPS