About this item Keyboard Interface USB (Nano receiver) Total No.of Keys 104 Companion 107 is a wireless keyboard and mouse combo that comes with a nano receiver built for home/office use. Plug and Play Mouse Interface USB (Nano Receiver) Resolution 1200 DPI No. of Buttons 3 Mouse High Precision Compact & Ergonomic Design Advanced optical sensor technology Nano Receiver Plug and Play The mouse that tags in this combo is ergonomically designed and super compact. It is a high precision mouse with 1200 DPI, and three buttons. 1 Year warranty-from the date of purchase The keyboard features 104 keys inclusive of a rupee key. It has a low battery LED indication,and a power-saving mode.