Features: Applies the latest Bluetooth 5.3+ EDR (Enhanced Data Rate)+BLE (Bluetooth Low Energy) technology effectively enhances anti-interference ability and greatly reduces latency .Quick response, more stable connection and better anti-interference, say goodbye to delay and lag. Bluetooth 5.3 USB Transmitter Dongle enables Non-Bluetooth PC or Laptop to pair and connect with Bluetooth headphones or speakers for stereo music wireless streaming. Thanks to the upgraded Bluetooth 5.3 Technology, Get faster data transfer speeds of up to 3 Mbps, which is double what Bluetooth 4.2 supports and extended range of transmission distance up to 66ft/20M in open space. You can enjoy lossless music via your Bluetooth headset without hovering around your computer Plug and play for Win 8.1, 10, and 11. Driver required for Win7 and could be downloaded from website free of charge. The USB Bluetooth dongle for PC supports up to 5 devices to be connected at the same time without interfering with each other, Which means that you can listen to high-quality music while using the keyboard or other devices. Low profile compact small USB adapter allows you to leave plugged in your laptop or PC without blocking or interfering surrounding USB ports. The Bluetooth dongle , it is backward compatible with old Bluetooth 5.2/5.1/5.0/4.2/4.0/3.0/2.1/2.0/1.1. Dual-mode Bluetooth transfer, compatible Full-speed USB 2.0 interface, USB3.0. Note: 1.Please disable the note the existing internal Bluetooth function first. 2. Not work with for Mac OS, for Linux, car stereo systems, for xbox, for ps4 or TVs. Package include: 1* Bluetooth 5.3 Adapter