Logitech keyboard k520

I do not have the original carton

Auto-enter power saving mode when you stop use it
Loigys wireless keyboard and mouse combo with smart power saving function, No need ON/OFF switch. The wireless keyboard will auto-enter power saving mode when you stop use it more than 10 seconds, the wireless mouse will auto-enter power saving mode when you stop use it more than 2 minutes, never worry about wasting battery by forgetting to turn off the switch.

Press any key or button can make the wireless keyboard mouse re-activity when they in power saving mode.

Comfortable Palm Rest
3 Wireless Keyboard Indicator Lights
2 In1 USB Receiver
3 Levels Adjustable DPI (800/1200/160