Wireless mouse battery version silent ultra-thin sliding mouse $ 6.77 Number of rollers: 1 battery model: two AAA batteries Color classification: Technology gray/battery version [silent silent + powerful battery life] 2.4G wireless version magic black / battery version [silent silent + powerful battery life] 2.4G wireless version space silver / battery version [silent silent + powerful battery life] 2.4G wireless Version wireless technology: 2.4GHz Wireless distance: 10m
