Following is from Logitech (THIS DOES NOT SUPERSEDE MY DESCRIPTION)
DIMENSIONS
Mouse Dimensions
Height x Width x Depth:
3.73 in (94.7 mm) x 2.24 in (57 mm) x 1.54 in (39.1 mm)
Weight (with batteries): 3.28 oz (93 g)
Receiver Dimensions
Height x Width x Depth:
0.57 in (14.4 mm) x 0.74 in (18.7 mm) x 0.24 in (6.1 mm)
Weight: 0.06 oz (1.8 g)
SYSTEM REQUIREMENTS
Windows Vista®, Windows® 7, Windows 8, Windows 10
Mac OS® X 10.5 or later
Chrome OS
Linux® kernel 2.6+
certified Works With Chromebook (4)
USB port
TECHNICAL SPECIFICATIONS
Sensor technology: Advanced Optical Tracking
Sensor Resolution: 1000
Number of buttons: 5
Scroll Wheel (Y/N): Yes (with Micro-precise scrolling)
Tilt scroll function (Y/N): Yes
Battery life: 18-month battery life (2)
Battery type: 1 AA battery
Wireless operating distance: Approx 10m
Wireless technology: Advanced 2.4 GHz wireless connectivity(Unifying supported)
Interface: USB receiver
Product Origin: China
PART NUMBER
Red: PN: 910-002651
Blue: PN: 910-002650
Violet: PN: 910-003120
Brilliant Rose: PN: 910-003121u
1. Based on independent sales data (in US$ currency) for CA, US, AU, FR, DE, IT, from September 2008 through August 2010.
2. Battery life may vary based on user and computing conditions.
3. Tilt wheel will not support backward/forward on Mac® computers but will support Dashboard, Exposé® or Spaces® (when you select in System Preferences).
4. This product has been certified by Logitech to meet Google's compatibility standards.