Keyboard -Connection type: Bluetooth® Smart and 2.4 GHz wireless connection -Wireless range: 10 m -Wireless encryption: Yes -Battery details: 2x AAA
Mouse -Connection type: Bluetooth Smart and 2.4 GHz wireless connection -Wireless range: 10 m -Battery details: 1x AA -Battery life: 24 months -Sensor technology: Logitech advanced optical scanning -Sensor resolution: 1000 dpi -Scroll wheel: Extra fast -Number of buttons: 8 -Battery life: 36 months
Package contents -Wireless keyboard -Wireless mouse -Unifying receiver -2 AAA batteries in the keyboard, 1 AA battery in the mouse (installed) -Device cable to extend the range of the USB range extender -User documentation
Link to manufacturer website https://www.logitech.com/en-en/product/mk850-wireless-keyboard-mouse-combo