connectland 2.4 ghz wireless keyboard multimedia hot keys and optical mouse combo black color
keyboard and mouse powered by 2 x 2 aaa batteries included . one usb receiver for keyboard and mouse . low-voltage alarming function . keyboard 114 keys with 11 multimedia internet keys . adjustable optical mouse sensor from 800 dpi to 1600 dpi . mouse with on off switch . working distance approximately 10m . working frequency 2.40 g - 2.48 g. 2-ways communication technology . no driver needed simply plug amp play . system requirement support windows me 2000 xp vista