1. Electronic noise reduction technology transmission: This product can provide electronic noise reduction technology transmission, which can help you achieve perfect high-fidelity lossless audio output, allowing you to enjoy the perfect audio-visual experience. 2. Mixing effect: This product can be used to connect Multiple mobile phones to play a speaker to create a mixing effect, allowing you to enjoy the stereo sound of the concert. 3. Multi-person use: This product can be used to connect Multiple earphones to listen to songs, suitable for sharing good music with family and friends. 4. 3.5mm plug: This product has 3.5mm plug, fast transmission speed, and the number of plug-ins is more than 50,000 times. 5. Easy to install: This product is easy to install and use, very convenient, plug and play. Specification: 5 Ports Material: plastic+metal colour: black Package Contents: 1 x 3.5mm Earpphone Spliter 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.