That to-do list is a done listThis full-size keyboard brings efficiency to your workflow with quick-access, multimedia keys and a convenient number pad. The 1000 DPI mouse sensitivity makes navigating your system easy with its three buttons and scroll wheel.It goes on. And on and on.This keyboard and mouse combo offers one of the industry’s leading battery lives, 36 months for the keyboard and the mouse clocking in at an impressive 18 months. Rigorous testing ensure it works seamlessly with your Dell system, so set-up is a breeze.It hits the ground running and doesn’t slow down.Wireless - 2.4GHz (USB receiver)Keyboard & Mouse: USB ReceiverBatteries (Keyboard 2 x AAA / Mouse 1 x AAMouseSENSOR: Optical LEDRESOLUTION (DPI): 1000BUTTONS: 3DIMENSIONS: 104.9x38.9x58.3, 58.3grKeyboardAnti-fade plunger keysMULTIMEDIA KEYS: 6 Multimedia Keys (Vol+, Vol-, Speaker Mute,Play/Pause, Forward, Backward)DIMENSIONS: 444.92x25.3x141.22,