Universal USB Converter ABS Anti-interference Bluetooth-compatible 5.3 Mini Wirele USB Adapter Signal TransferSpecifications:You can use this wirele adapter to solve the problem of your computer not having a Bluetooth-compatible function, allowing your computer to connect wirelely and achieve Bluetooth-compatible transmiion. And it is plug-and-play, driver-free, and easy to use.What this wirele adapter with the smart Bluetooth-compatible 5.3 chip can offer you is that it is highly sensitive, and anti-interference, with low latency and no lag, allowing for faster transmiion and a more stable connection.It is constructed of ABS material.The length of this product is 2.2cm and width is 1.7cm.It is compatible with Bluetooth-compatible 2.0, 2.1, 3.0, 4.0, 5.0 and 5.1 specifications, support Bluetooth-compatible 5.3 dual-mode specifications (Bluetooth-compatible 5.3 standard).Item Name: USB AdapterBluetooth-compatible Version: Bluetooth-compatible 5.3Transmiion Distance: 20 Meters (In An Acceible Environment)Supported Protocols: A2DP/HSP/AVRCP/HID and Other ProtocolsFeatures: Plug Play, High Performance, Driver-freeSize Details:L: 2.2cm/0.87", W: 1.7cm/0.67" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x USB Adapter