Feature: 1. 20 Meters Long Distance Transmission: The Bluetooth receiver has a built in antenna, which can realize 20 meters long distance transmission in a barrier free and interference free environment, and there is no dead corner connection in the living room. 2. Fast and Stable: True Bluetooth 5.0 is more than fast. With RTL8761BUV chip, it can achieve higher sensitivity, faster transmission and more stable device connection. 3. Automatic Memory and Quick Connection: After the Bluetooth adapter is successfully paired for the first time, it will automatically identify the connection when it is turned on later. 4. Multiple Bluetooth Devices Connection: Bluetooth 5.0 adapter supports simultaneous connection of multiple Bluetooth devices. 5. Applicable Operating System: USB Bluetooth 5.0 Adapter supports for Windows 7, 8.1, 10, 11 (32 bit and 64 bit). Specification: Item Type: USB Bluetooth 5.0 AdapterProduct Material: ABS Weight: Approx. 27g / 1.0oz Transmission Rate: 3Mbps Transmission Distance: Approx. 20m / 65.6ft Working Frequency: 2.4Hz Product Size: Approx. 14x8x24mm / 0.6x0.3x0.9in Applicable Operating System: Support for Windows 7 8.1 10 11 (32 bit and 64 bit). Package List: 1 x Bluetooth Adapter 1 x CD 1 x Manual