LOGITECH MK470 SLIM COMBO wireless keyboard and mouse combo

LOGITECH MK470 SLIM COMBO wireless keyboard and mouse combo Dimensions Mouse Dimensions Height: 4.21 in (107 mm) Width: 2.32 in (59 mm) Depth: 1.04 in (26.5 mm) Weight (including battery): 3.53 oz (100 g) Keyboard Dimensions Height: 5.6 in (143.9 mm) Width: 14.7 in (373.5 mm) Depth: 0.84 in (21.3 mm) Weight (including battery): 19.7 oz (558 g) Nano receiver Height: 0.74 in (18.7 mm) Width: 0.57 in (14.4 mm) Depth: 0.24 in (6.1 mm) Weight: 0.06 oz (1.8 g) Technical Specifications Mouse Sensor Technology: High Precision Optical Tracking Sensor resolution: 1000 DPI Number of Buttons: 3 Scroll Wheel: Yes- Mechanical Scroll Buttons: Middle Button Unifying ready mouse: No Unifying ready receiver: No Battery life Mouse: 18 months Battery type mouse: 1xAA Keyboard Battery life Keyboard: 36 months Battery type keyboard: 2xAAA Wireless operating distance: 33 ft (10 m) 1Wireless range may vary due to environmental and computing condition Wireless technology: Logitech Nano Receiver