*Logitech R500 Wireless Presenter Pointer Original

Class: 2 laser max output: less than 1 mw wave length: 640-660 nm (red light) battery battery: 12 months + 1 extra week without laser pointer 4when your battery is low, the r500 goes into a 'power-saving' mode - disabling the laser to extend battery life so you can continue presenting for an extra week. battery life may vary based on use and computing conditions. indicator lights (led): battery and connectivity led connectivity connection type: bluetooth low energy technology and 2.4 ghz wireless connection wireless range: 20 m 5it may vary based on use and computing conditions. package contents presentation remote usb dongle 1 aaa battery