M220 Wirele Gaming Mouse High-Quality Optical Ergonomic PC Game Mouse for Mac OS/Window Support Office Test Description: Ambidextrous design offers more comfort and precision than your laptop's touchpad. The contoured shape and curved soft rubber grip guide either hand to a natural position. The compact, portable size makes the M220 perfect to to in a bag and go. A single AA battery gives you enough power to go for 18 months without battery changes*. Smart sleep mode and an On/Off switch help you conserve even more power. Quietly click, scroll and move your mouse around all day and night without over-working either hand. Advanced Optical Tracking and high-performance feet pair to give you silent, precise moves on almost any surface. Specifications: SeriesM220 Product Weight91 g Product Dimensions9.9*6cm Batteries1 AA needed, Not include ColorBlack/Blue/Red Form FactorAmbidextrous Power SupplyBatteries Battery DescriptionAA Package Included:1x Mouse Not include Batteries Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 0.1-2cm measuring deviation due to manual measurement.