Bluetooth A2DP Music Receiver Audio Adapter for iPad iPod iPhone 30Pin Dock Features: Compact and mini-sized design, easy to take along with. Easy to use by connecting directly 30-pin dock to change the common sound-box to Bluetooth sound-box. High acoustic fidelity sound. Support digital products using Bluetooth ,such as for iPad iPhone, Bluetooth cell phone, Bluetooth PC. Complies with Bluetooth 4.1, Support A2DP. Powered: via target device ( docking station). LED: One LED for pairing and charging status. Transmission distance: up to 10~15 meters(No obstructions). Specification: Output: Bluetooth Support file: Bluetooth V4.1 ; A2DP HSP HFP OPP OBEX DUN Frequency Range: 2.4GHZ-2.4835GHZ Connector: Equipment with for Apple 30-Pin Dock Chipset model: OVC3860 Stereo Sound Chip Audio quality: High acoustic fidelity sound Transmission distance: Up to 10~15m / 33~49ft Product size: 31 * 44 * 9mm / 1.3 * 1.8 * 0.4in Product weight: 8g / 0.28oz Package size: 12.2 * 10.3 * 1.7cm / 4.8 * 4.1 * 0.8in Package weight: 23g / 0.81oz Package List: 1 * Bluetooth Music Receiver 1 * User Manual(English)