Multi-functional Companion: Powered by a 5000mAh battery, the case can fully charge the Baton 4 flashlight 5 times, giving the flashlight a max runtime of 190 days. It can also charge your mobile devices for emergencies with its USB-C port. All Things Done With A Press: The digital display button on the case shows the remaining power; just press the button to light up the flashlight directly, and long press to achieve stepless dimming, allowing simultaneous charging and lighting in your hand. Home For Six Lights: The case is fully compatible with Baton 4 and Baton 3 and supports storing and charging the S1R II, Perun Mini, Perun 2 Mini and Perun 3 Mini.