Item Type: USB Bluetooth 5. 0 Adapter_x000D_Product Material: ABS_x000D_Weight: Approx. 27g / 1. 0oz_x000D_Transmission Rate: 3Mbps_x000D_Transmission Distance: Approx. 20m / 65. 6ft_x000D_Working Frequency: 2. 4Hz_x000D_Product Size: Approx. 14x8x24mm / 0. 6x0. 3x0. 9in_x000D_Applicable Operating System: Support for Windows 7 8. 1 10 11 (32 bit and 64 bit) 120 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. 2Fast 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. 3Automatic 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. 4Multiple Bluetooth Devices Connection: Bluetooth 5. 0 adapter supports simultaneous connection of multiple Bluetooth devices. 5Applicable Operating System: USB Bluetooth 5. 0 Adapter supports for Windows 7, 8. 1, 10, 11 (32 bit and 64 bit).