Bluetooth Adapter 5.0 For Computer The Frequency Range Is 2.4Ghz, With 20M Signal Transmission. It Applies Edr Faster Data Transmission With A Transfer Rate Up To 3Mbps. This Bluetooth Adapter Cannot Be Used With Tv, So Please Confirm Your Needs . The Adapter Supports Windows 11 10 8.1 8 7 Vista. It Can Make Computer Bluetooth Connection With Other Devices Not Compatible With Mac Os, Windows Rt And Linux , And Is Compatible With Bluetooth V3.0 2.1 2.0 1.1. It Also Supports Multidevice Connection More Than Two Can Be Connected On Different Frequencies Bands . To Use The Adapter, First Install The Drivers Via The Provided Mini Cd. Once The Software Is Run, You Can Simply Insert The Adapter To Connect. With The Advanced Driver, When Not Installed, Mobile Phones And Tablets Can Transfer Text And Photos, And After Installation, The Computer Can Be Connected To Bluetooth Headphones And Speakers. If Your Computer Does Not Have A Drive, You Can Download The Installer From The Link Provided. The Adapter Uses Aptx Encoding And Decoding Technology, Which Provides Cdlevel Audio Quality That Is Almost Lossless. It Also Has A Builtin Antenna For 20M Long Distance Transmission In A Barrierfree And Interferencefree Environment.