Owing to bluetooth-compatible 5.0 and the built-in antenna, it can achieve higher sensitivity, faster transmission speed, long-distance transmission and more stable device connection.Our product is plug and play so it is easy to use. It is mini and compact so you can carry it easily.Made of ABS material, the bluetooth-compatible adapter is reliable and durable. It can be linked with keyboard, headphone, mouse, etc and you can enjoy entertainment experience with low latency and high sensitivity.The length of the product is 2.3cm, the width is 1.6cm, the height is 0.74cm.The bluetooth-compatible adapter is compatible for Windows computer systems. For Win 7 above (for Win 7/8/10) systems need no driver when being used.Item Name: bluetooth-compatible AdapterMaterial: ABSModel: YET-D3Interface: USBPlug and Play: YesExternal Power Supply: No Transmission Rate: 30MbpsTransmission Distance: 20mBluetooth Standard: 5.0Bluetooth Chip: BR8041Working Frequency: 2402MHzCompatible Systems: for Windows Systems Features: Sensitive, Plug Play, PortableSize Details: 2.3cm x 1.6cm x 0.74cm/0.91" x 0.63" x 0.29" (Approx.)Notes:Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes:1 x bluetooth-compatible Adapter (Other Not Included)