-Official product page link-
 
-FEATURES-
	
TRACKBALL COMFORT - Sculpted shape supports your hand and stays in one place—move the cursor without moving your arm
	
CONVENIENT CONTROLS - Easy-to-reach Back/Forward buttons makes moving quickly between documents or browsing your favorite Web sites a breeze
	
LONG BATTERY LIFE - With up to 18 months of use from a single AA battery, you might just forget your trackball uses batteries at all
	
EASY TO CLEAN - Should you need to clean your trackball, removing the ball is a snap
	
PLUG'N'PLAY CONNECTION - Nano-sized Logitech wireless unifying receiver stays in your computer— plug it in, forget it, even add compatible wireless devices without multiple USB receivers.Wireless operating distance: Approx 10m
 
-SPECS-
	
Sensor technology: Laser
	
Sensor Resolution: 540
	
Battery Details: 1 x AA
	
Battery Life (not rechargeable): 18 months*
	
Wireless range: 10 m3
	
Wireless technology: Advanced 2.4 GHz wireless connectivity(Unifying supported)
 
Dimensions:
	
	
Mouse Dimensions (height x width x depth): 5.71 in (145 mm) x 3.74 in (95 mm) x 1.77 in (45 mm)
	
	
	
Mouse Weight (including battery): 5.01 oz (142 g)