This digital-to-analog audio converter is designed for home or professional audio switching. It converts SPDIF Toslink digital audio signals to analog 2RCA L/R audio and 3.5mm AUX, and can be connected to external devices such as amplifiers via standard RCA style/3.5MM auxiliary jacks. The converter is small in size and very easy to install. Ultra-stable connection: Our Bluetooth audio adapter is equipped with Bluetooth 5.0 chip for stable pairing, fast transmission and wide signal range of 50 meters. Can be connected to non-Bluetooth car audio systems, home audio, wired headphones/speakers, amplifiers/home theaters, etc. Then you can enjoy wireless high-fidelity music streaming! Automatically turns on when you connect to power, so Perfect for use in the car or anywhere else you want it to have an automatic turn-on feature. Support volume adjustment and song switching. Built-in antenna, the signal transmission is more stable, the sound is clearer and no noise. Colour:Photo Color Material:Aluminum alloy Package Contents: 1 x Host 1 x Lotus cable 1 x Audio cable 1 supply cable 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.