Upgrade your connectivity with the CSR4.0 Mini USB Bluetooth Adapter, a compact and powerful solution for enhancing your wireless experience. This versatile dongle is perfect for connecting your Windows devices to a variety of peripherals, including mice, keyboards, and headsets. Explore its impressive features: CSR4.0 Technology: Equipped with the advanced CSR8510 chip, this adapter adheres to Bluetooth 4.0 technical specifications, offering dual-mode transmission for seamless connectivity. Enjoy the benefits of modern Bluetooth technology with enhanced performance and reliability. Backward Compatibility: This adapter is fully backward compatible with Bluetooth 2.0, 2.1, and 3.0 specifications, ensuring it works effortlessly with a wide range of older devices. Connect with confidence, knowing your existing peripherals will integrate smoothly. Extended 20m Transmission Distance: Experience a longer transmission range of up to 20 meters without barriers, thanks to the strong signal capability. Move freely around your space while maintaining a stable connection to your devices. High-Speed 3Mbps Transmission Rate: Benefit from a more stable transmission rate that supports high-speed file and audio data transfer. Whether you're streaming music or transferring files, enjoy quick and efficient data exchange. Versatile USB2.0 Interface: The USB2.0 interface ensures broad compatibility and ease of use, making this adapter a convenient addition to any setup. Simply plug it into your Windows device and start connecting to your Bluetooth peripherals instantly. Enhance your wireless connectivity with the CSR4.0 Mini USB Bluetooth Adapter. Its cutting-edge technology and user-friendly design make it an essential tool for anyone looking to expand their device's capabilities.