RAPOO M500 Silent Wireless Mouse – Bluetooth 3.0/4.0 + 2.4G, 3-Device Switching, Up to 1600 DPI

Three devices, one mouse, zero USB dongle drama. The RAPOO M500 flips between Bluetooth 3.0, 4.0, and 2.4G with a smart switch, so you can jump from your laptop to your tablet without hunting for a receiver or freeing up a port. The silent click design keeps the open-plan office quiet when you're on a call or someone's in the next cubicle. DPI runs from 800 for precision work up to 1600 for speed, adjustable in four steps. The laser engine tracks on glass, wood, or that scratched desk surface you've been putting up with. One AA battery gets you up to 12 months before you think about power again

• Switch between Bluetooth 3.0, 4.0, and 2.4G – no receiver needed when USB ports are full
• Auto-pairs and intelligently switches among up to three connected devices
• Silent click design for quiet open-plan or shared workspaces
• Adjustable DPI: 800, 1200, 1600 in four levels
• High-performance laser engine tracks on virtually any surface
• Up to 12-month battery life with energy-saving power switch