Specifications:Bluetooth V4.0 Frequency: 2.4~2.48 GHz Symbol rate: 3Mbps Antenna: Integrated Receiving / Sending rang: 0 ~ 100M,Dimensions: 22mm x 18mm x 7mm Realize wireless transmission of files, audio and video, wireless printing, wireless LAN, wireless Internet access and other functions. Wireless connection to devices with Bluetooth technology (eg computer/PDA/mobile/printer/wireless gamepad),Support VOIP voice calls, seamlessly connect to Skype software. Support for all Windows systems, including Windows Vista.
Ultra-thin and light, built-in antenna, no need for USB connection, easy to use and carry. Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement..syi