MT350 Wireless Optical 1600 DPI Mouse Connect to up to 3 of your devices, simultaneously with the Rapoo MT350 Multi-Mode Bluetooth Wireless Mouse and then switch between them with just one click. This mouse has up to 10m range and a fully adjustable 1600 DPI sensor. The comfortable design will ensure pleasurable usage during those intensive assignment days. AA batteries will provide up to 12 months usage.