[Upgrade to Wireless Streaming]Try new bluetooth receiver and transfer all your music stream into wireless! Just connect with the speaker, pair your device with bluetooth audio adapter, and then you are ready to enjoy the new wireless audio stream. No more cables or wires, just pure, robust streaming experience. [Featured TF Card Slot]bluetooth adapter for stereo receiver is featured for the TF card slot. You can choose either to play from your smart device or TF card! No matter you are using an old speaker, vintage stereo, or car stereo system, you can easily turn the music into wireless via the 3.5 mm or cables of the bluetooth audio receiver. [Stable Connection & Extra Bass Mode]Adopted with Bluetooth 5.0, bluetooth stereo receiver offers a more stable connection without delay or lags. The featured 3D button is designed for the extra bass mode, which provides a robust and heavy music effect besides the crystal-clear sound. [Dual Devices and Auto-connect]bluetooth adapter for stereo receiver is to pair two devices at the same time. The bluetooth aux adapter will automatically pair with the last connected device when turned on. [Wide Cover Range]stereo receiver with bluetooth can cover up to 50-70ft range with a reliable connection. No more wires limit and definitely offer you much more convenience with a fluent, enjoyable music experience. Colour: black Material: plastic Package Contents: 1 x Bluetooth audio receiver 1 x cable 1 x USB data cable 1 x audio cable 1 x English manual Only the above package content, other products are not included. Note: Light 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.