Features:
Color: Black
Operation frequency: 2.4GHz RF
Operation distance: up to 10 meters
System requirement: Windows XP/Vista/7， Linux， Mac OS， Android OS (with standard USB interface)
Battery type: 2 * AAA Battery (not included)
Item size: approx. 14 * 4.2 * 2.8cm / 5.5 * 1.7 * 1.1in
Item weight: 61g / 2.15oz
Package size: 15.5 * 7.5 * 3.5cm / 6.1 * 3 * 1.4in
Package weight: 98g / 3.45oz
