Model nb-30 Features: Designed with innovative radio frequency identification technology.
This battery-free wireless optical mouse is absolutely
interference-free from any wireless frequency. In addition to that,
the rfid mouse pad is directly power activated & the mouse
creates huge cost saving for its users. Most importantly, this
technology avoids unnecessary pollution caused by batteries. Wireless optical Weightless design Frequency adjustable Benefits of battery less Beneficial design Ingenious mouse pad