Logitech WIRELESS ULTRA PORTABLE M187

Sensor technology: Advanced Optical Tracking

Sensor Resolution: 1000

Number of buttons: 3

Scroll Wheel (Y/N): Yes

Battery life: (6-month battery life) 1

Battery type: 1 AAA battery

Wireless operating distance: Approx 10m 1

Wireless technology: Advanced 2.4 GHz wireless connectivity

Interface: USB receiver