Other wireless mouse I've had all had a "dongle" that should be plugged into a PC port to operate. And as this dongle -In addition incapacitating lifelong taken a USB- still exceeded the "carcass" of the PC, it often happened that clings somewhere to eventually break: Result: Mouse become unusable! This one is Bluetooth in its manufacture so no dongle. So for those who still do not reach (s) to use a mouse without keyboard, I highly recommend this one, which can also be coupled with a tablet. Delivered in a small, easy to carry around with you box it is completely made perfect! I recommend.