Ultra small USB adapter to add Bluetooth 2.1 wireless technology to your notebook or PC. Latest Class 2+ technology for double range (25 m), improved wireless security and up to 7x faster pairing. Gold plated design for high performance and error free connection. Ultra small size that fully integrates with your notebook when plugged in.Instantly use your Bluetooth mouse on your notebook without (un)plugging the USB adapter. Also works with previous Bluetooth versions.