Bluetooth-compatible 5.1 Wireless Receiver Bluetooth Adapter 30pin for Sounddock Portable Digital Music System Speaker Tool . PK I-WAVE 30 Pin Bluetooth 5.1 Audio Receiver A2DP Music Mini Wireless Adapter For 30Pin Jack Analog Speaker . 30 Pin Bluetooth 5.4 Audio Receiver A2DP Music Mini High Quality Wireless Adapter For 30 Pin Jack Analog Speaker . Hign-concerned Chemical:None Model Number:30Pin Bluetooth 5.4 Audio Receiver Music Adapter Interface:DP Features1: HIFI Stereo Lossless Music Features2: 30Pin Wireless Music Receiver Features3: HIFI lossless sound quality Features4: High Compatibility Features5: I-WAVE Upgraded version Features6: 30 Pin Bluetooth Receiver Adapter Features7: Compatible with for Sounddock II 2 IX 10 Portable Speaker Features8: Compatible with for 30 Pin Base Docking Station Speaker Color:Black Material:plastic Package Contents: 1 * Bluetooth 5.4 30 Pin Audio Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.