1.Suitable for audio devices, to effectively reduce noise interference and improve sound performance, making music listening more comfortable and enjoyable. 2.Highly practical, suitable for different places and occasions such as recording studios, audiovisual events, conference presentations, live interviews, etc. 3.Made with high-quality materials and craftsmanship, providing excellent durability and stability, with a long lifespan, easy maintenance, and for money. 4.Simple in structure, compact in size, easy to carry and store, can be used anytime, anywhere, convenient and practical. 5.The product is safe and reliable, passing multiple certifications and testing, complying with safety standards and environmental requirements, ensuring worry-free purchasing and use. Compatible Models: 1.Works with any portable device that has 3.5mm audio jacks, for your car audio system, home stereo, when grounding issues persist. 2.with a bluetooth receiver function, can be a bluetooth hands-free car kit in your car audio system, home stereo. Bluetooth Version:5.4 Audio input: stereo Frequency response: 20HZ-20KHZ Audio Interface: 3.5mm Colour:Black Material:ABS Package Contents: 1 x Audio receiver 1 x Audio cable 1 x English Instruction manual 1 cord 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.