Lookatool 30Pin Dock Speaker Bluetooth A2DP Music Audio Receiver Adapter For iPhone iPod Complies with Bluetooth 2.0, Plug and Play. Support A2DP V1.2, compatible with all devices enabled with A2DP stereo Bluetooth. Transmission distance: not less than 10 meters (33 feet). Long distance to play your favorite songs in your device through a Bluetooth connection. Support digital products using Bluethooth, such as iPad, iPod touch, iPhone, Bluetooch cell phone, Bluetooth PC, PSP. New mini & light & portable design. Easy to use by connecting directly 30 pin dock to change the common sound-box to Bluetooth sound-box. Support Bluetooth version: Bluetooth V2.0 A2DP V1.2. Connector: Equipment with Apple 30-Pin Dock. Transmission distance: Up to 33 feet (10meters) away. Weight: 8g. Size: 43mm*32mm*9mm.