Wirele Receiver Transmitter Adaptador Plug and Play Wirele Bluetooth-Compatible5.1 Receiver Driver-free 20m for Win/8.1/10/11 for PC/Speaker/Mouse/HeadphoneFeature:1. Automatic Memory Function:Thisusb bluetooth-compatible5.1 adapter has an automatic memory function that remembers the initial pairing and connects to the Bluetooth device automatically when your computer is turned on, saving you time and effort.2. Multi-device Connectivity:This wirele receiver transmitter adaptador can be used with multiple Bluetooth devices at the same time, supporting up to 7 connections simultaneously, thus saving USB ports for other devices.3. Plug-and-Play :The usb bluetooth-compatible5.1 dongle is compatible with Windows 8.1/10/11 operating systems without the need for additional drivers or software. Simply plug it in and start using it.4. Strong Signal Coverage:With a strong signal coverage of up to 20 meters and no obstacles, this wirele bluetooth-compatible5.1 receiver offers seamle long-distance transmiion, allowing all devices to connect wirelely throughout the entire house.5. High-performance Bluetooth Chip:Equipped with a high-performance Bluetooth chip, this wirele usb adapter provides stable and fast signal transmiion with minimal latency and no lagging.Specification:Certification: NONEOrigin: Mainland ChinaInterface: USBWirele Type: Bluetooth-CompatibleWIFI Standard: NoneContent: Audio&VideoHigh Definition Support: NoneModel Number: Wirele Receiver Transmitter AdaptadorColor: Red/Black/Green (optional)Interface: USBTransmiion rate: 24/40/50 (Mbps) (optional)Working frequency: 2.4 (MHz)Effective working radius: 20mBluetooth-Compatible standard:Red: 5.0Black: 5.1Green: 5.3 (optional) Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. 1 x USB Bluetooth-Compatible5.1 Adapter