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 8.1/10/11. It should be noted that it is not suitable for win7/8, OS, Linux, , TV. Features 1. Newly upgraded Bluetooth 5.3 adapter, high 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 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.