Feature: 1. Advanced Technology: The USB Bluetooth-compatible Adapter uses for the Taiwan Realtek RTL8761BW chip, which meets the Bluetooth-compatible 5.3 technical and supports dual-mode low power transmission. 2. Long-range Transmission and Stable Speed: With a class one protocol, the adapter can transmit data up to 100m (without barriers), providing a strong signal. It supports a 3Mbps transfer rate, making it perfect for high-speed file, audio, and data transfer. 3. Driver Management Software: The Realtek driver management software is easy to use and powerful, supporting multiple application program extensions. With ultra-low latency and intelligent sleep/ function, the adapter conserves energy while resisting interference with a 24-bit check to reduce interference. 4. Portable and Widely Compatible: The USB 2.0 (universal USB 3.0) interface is portable and universal, and the small size makes it convenient for travel. Also, it fully supports various Bluetooth-compatible protocols such as 2.0, 2.1, 3.0, 4.0, 5.0, and 5.1, making it compatible with most devices. It is a faster and newer version of Bluetooth-compatible adapter that has strong compatibility, stable speed, and a longer receiving distance. 5. Wide Compatibility: The adapter supports various operating systems, including for 7, 8.1, 10, and 11, making it possible for wireless audio, image, and data transfer between computers and other Bluetooth-compatible devices such as headphones, speakers, mice, keyboards, gaming controllers, phones, printers, etc. Specification: Model: RTL807 Bluetooth-compatible: 5.3 Transmission distance: 100m Transmission rate: 3Mbps Chip: RTL8761BW Supported protocols: A2DP//AVRCP/HID and other protocols Material: plastic colour: Black Package Contents: 1 x Bluetooth Dongle Adaptador 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.