Features: 1. Bluetooth 5.0: This product adopts Bluetooth 5.0 technology, and the transmission rate is up to 100Mbps, so the signal transmission is faster and more stable, and it is not stuck when listening to songs. 2.USB power: You can charge it on the USB port and connect it to the device via the audio adapter while using, and never worry it will run out of power when listening to music. 3.Plug and play: You can remove the adapter from the USB port and insert it again to switch transmitter/receiver mode. Description: This lightweight wireless audio transmitter receiver is an ideal wireless audio solution for a wide range of situations and uses. Specifications: Color: black Transmission rate: 100Mbps Effective working radius: 15m Working frequency: 5MHz Input voltage: DC5V Size: 45*20*11mm Package Included:1*Host+1*3.5mm audio cable+1*manual Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.