Feature 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).SpecificationItem Type: USB Bluetooth5.0AdapterProduct Material: ABSWeight: Approx. 27g / 1.0ozTransmission Rate: 3MbpsTransmission Distance: Approx. 20m / 65.6ftWorking Frequency: 2.4HzProduct Size: Approx. 14x8x24mm / 0.6x0.3x0.9inApplicable Operating System: Support for Windows 7 8.1 10 11 (32 bit and 64 bit) .wang-edit-text{ font-family:'Arial' important; } .wang-edit-text table { border-top: 1px solid 000; border-left: 1px solid 000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid 000; border-right: 1px solid 000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Bluetooth Adapter1 x CD1 x Manual