Support dual stream (TX mode and RX mode), transmission can connect two Bluetooth audio devices and receivers at the same time. The Bluetooth adapter has a memory function and will automatically connect to the device you have paired before when it is turned on.The Bluetooth transmitter/receiver uses 5.0 technology to provide more stable, faster transmission, lower power consumption, and at the same time show excellent sound quality. Bluetooth 5.0 with audio adapter, the data transmission rate is twice that of Bluetooth 4.2, and can maintain a distance of up to 10 meters (without obstacl).Equipped with an enhanced Bluetooth 5.0 chipset, the Bluetooth transmitter receiver can provide stable audio and CD quality, allowing you to experience true high-definition audio. With low latency, you can watch the video while watching the movie without delay. Note: Low latency needs to support Bluetooth headsets or speakers. Low latency does not support RX mode.this receiver transmitter adapter can be widely used in your computer, laptop, home stereo system, headset, smart phone, Mp3 player, CD player, etc.High-definition sound quality is more true and pure. We are persistently pursuing better sound quality, and never give up quality Bluetooth 5.0 chip for efficiency, fast transmission speed, more stable connection, and lower power.Input interface: 3.5mm audioColour: blackMaterial: ABSSize: 7.7x2x1.5cmPackage Contents:1 * Bluetooth transmitter1 * USB lineOnly the above package content, other products are not included.Note: Light shooting 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.