Upgrade Bluetooth 5.3 This Bluetooth adapter has a faster data mission speed and a larger amount of data mission and reception. In addition, the mission 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 fer. 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. mission Distance The mission distance of Bluetooth 5.3 can reach 20 meters, the delay is reduced, and the mission is faster and more stable. Quick And Auto Reconnect A better Bluetooth experience. Data mission Support PC, Smartphone To fer 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.