Description:Wide application: This wirele receiver transmitter allows you to listen to music wirele and transfer files via bluetooth-compatible.Useful tool: With this bluetooth-compatible transmitter receiver, your computer and laptop can connect to a wirele mouse or keyboard.Easy to use: This USB wirele adapter can be used directly without any driver, when you use it on an OS intended for Windows 8.1/10/11.Good performance: This bluetooth-compatible USB dongle is designed with an antenna that can increase the transmiion range, stability and strength.Portable: This wirele USB dongle is small and lightweight, so you can easily carry or store it when going out.Specification:PCBA size: Approx. 206x22x11mm/8.11x0.87x0.43 inch.Product size: Approx. 206*22*11mm/8.11x0.87x0.43 inch(folded), 153*68*11mm/6.02x2.68x0.43 inch(unfolded).Bluetooth-compatible version: 5.1.Frequency range: 2.4Ghz(2402-2480MHz).Transmiion range: Approx. 0-100m/328.08ft.Rated voltage: DC 5V.Interface: USB.Transmiion rate: 230KB/S.Support OS: Replacement for Windows 7/8.1/10/11.Working/storage temperature: 5~55/-10~75.Working/storage humidity: 40%~60%/25~75%.Note:There might be a bit of color distortions due to different computer resolutions.There might be a slight error due to different hand measurements.Not support intended for Windows XP, intended for Linux, intended for MAC.Intended for Win 7 needs to install a driver.Package Includes:1 Piece Bluetooth-compatible Audio Adapter.