Logitech M221 Silent Wireless Optical Blue Mouse with 1000DPI and 2.4 GHz Technology Mini DisplayPort to HDMI Adapter 8GHz quad-core CPU and 2

8GHz quad-core CPU and 2

6 Engine Clock OC Mode - 1867 MHz (Boost Clock)

72W Dimensions (L × W × H) 240mm × 120mm × 25mm Lifespan 60

2 AAA batteries（Alkaline Battery）

Display 27 Inches Samsung Monitor - 2

Logitech M221 Silent Wireless Optical Blue Mouse with 1000DPI and 2.4 GHz Technology Mini DisplayPort to HDMI Adapter 8GHz quad-core CPU and 2Get all your work done without missing a beat or disturbing those around you. Silent Mice have the same click feel without the click noise over 90% noise reduction. 18 months of long battery life helps you go longer between battery changes using a single AA battery (battery life may vary based on user and computing conditions). As a plug and play device, setup is very easy. Simply plug in the receiver, insert a battery, turn it on, and you're all set.