Have I bought this trackpad, because I do not ever wanted to change batteries as the Apple pad. Thanks to the USB connection to the computer running well. The pad is able to continue operating via Bluetooth, but if required to load via USB actually I have the plug always at the computer. This pad is not quite so finely balanced on the touch pad as the Apple, so a star deduction. However, I'm just a normal user, ie surfing, emailing, reports etc. tap it reaches this absolute thick pad! That you can not immediately meet one-two times a week this little Symbolchen, then get over real.