Bluetooth A2dp Music Audio Receiver Adapter for Bose Sounddock and 30-pin iPod iPhone Dock Speaker 5Hz ~ 3MHz with 5-digit

5Hz ~ 3MHz with 5-digit LED display

and the battery box

81 mm) Bolt circle diameter 4

Specifications: Laser power: 40mW 532nm Green

school electronics labs

Bluetooth A2dp Music Audio Receiver Adapter for Bose Sounddock and 30-pin iPod iPhone Dock Speaker 5Hz ~ 3MHz with 5-digitNote: For Bose SoundDock, only compatible with newer generation sounddock series I (that will charge iPhone), series II, & Portable. NOT compatible with older generation Sounddock I that cannot provide charge to an iPhone or iPod. Please check your Sounddock before ordering by plugging your iPhone or iPod into the dock, if your iPhone iPod indicates that it is being charged, the adapter will work. Does not work with dock speakers in a car. Easy to use