Key benefits Connect multiple wireless devices at once: supports simultaneous connections so laptops, keyboards, mice, speakers and other peripherals can work together without switching adapters. Broad compatibility: works with Bluetooth versions 5.1, 5.0, 4.2 and 4.1 (backward compatible), providing a stable link with a wide range of computers and accessories. Better audio and simpler setup: use the wireless stereo function to stream clear, high-fidelity sound from your computer to speakers or headphones without cables. Cable-free productivity: free your workspace by connecting keyboards, mice and other input devices wirelessly for a neater setup and fewer cable tangles. Features Multi-device support for classrooms, meeting rooms or home setups where several wireless devices must operate at the same time. Wide version compatibility to reduce pairing problems and ensure reliable connections across different devices and operating systems. Stereo audio support for improved music and multimedia playback from your computer through a wireless stereo adapter. Designed for straightforward wireless operation: pair once and use to remove wired constraints between computer and peripherals. Practical use scenarios Classroom: connect multiple student tablets and a wireless speaker to a single computer for group lessons and multimedia playback. Office meeting: pair presenter laptops and wireless keyboards or mice to the meeting computer to switch presenters quickly without rewiring. Home media and productivity: stream music from your PC to a stereo system or headphones while using a wireless keyboard and mouse for a clean media-center setup. What this product solves Eliminates cable clutter and reduces the need to swap adapters for different devices. Minimizes pairing and compatibility headaches by supporting multiple Bluetooth versions. Delivers clear stereo audio from your computer to wireless playback devices for listening and presentations.