The full charge takes up to 10 days with predefined settings or up to 5 months with the backlight turned off. Battery life may vary depending on user and computer conditions. Easy-Switch buttons allow you to connect up to three devices and switch between them at the push of a button. Hand proximity sensors turn on the backlight, while ambient light sensors adjust the brightness of the backlight. The device is USB-C rechargeable. It features a lock button and battery indicator lights. Compatible with Logitech Flow-enabled mice.