Upgrade Bluetooth 5.3 This Bluetooth adapter has a faster data transmission speed and a larger amount of data transmission and reception. In addition, the transmission distance is increased and the ability to penetrate walls is also enhanced. Backward Compatibility This Bluetooth adapter can be compatible with Bluetooth 2.0/3.0/4.0/5.0/5.1 devices, with a Bluetooth 5.3 adapter, you can easily solve all other Bluetooth connection problems. Free Drive, Plug And Play. This Bluetooth 5.3 is driver-free, plug and play. Compatible with Windows 8.1/10/11. It should be noted that it is not suitable for win7/8, Mac OS, Linux, car system, TV. Features 1. Newly upgraded Bluetooth 5.3 adapter, high speed up to 3Mbps. 2. Bluetooth low energy Radio USB Dongle. 3. Dual-mode Bluetooth transfer. 4. Low-power selectable 1.2 to 3.6 VI/O. 5. Supporting Bluetooth voice data. 6. Supporting multiple languages. 7. Compatible with Bluetooth 3.0/4.0/5.0/5.1/5.3 8. 5 devices can be connected at the same time. Color: blue and black Material: plastic Broad Compatibility The Bluetooth adapter has wide compatibility and it supports simultaneous connection of 5 devices. Transmission Distance The transmission distance of Bluetooth 5.3 can reach 20 meters, the delay is reduced, and the transmission is faster and more stable. Quick And Auto Reconnect A better Bluetooth experience. Data Transmission Support PC, Smartphone To Transfer Files Quickly. Enjoy Bluetooth Life Package Contents: 1 x USB Bluetooth Adapter