FRONTECH MOUSE MODEL NO : MS-0003 + 2.4 Ghz + USB PLUG & PLAY + 100 DPI + AUTO POWER OFF + WARRANTY : 1 YEAR SPECIFICATION : + 1000 DPI + 3 BUTTONS + DIMENSION (mm) : 99 x 61 x 37.3 + 2.4G WIRELESS TECHNOLOGY + RATING : 1.5V, LESS THAN 20mA + TRACKING METHOD : OPTICAL + BATTERY TYPE : 2 x AAA (NOT INCLUDED) SPECIAL FEATURES : + ERGONOMIC DESIGN + COLOUR : BLACK + USB 2.0 PLUG & PLAY + 1 YEAR LIMITED WARRANTY