Almost shorter than your index finger. The Baton 4 provides maximum 1,300lm output and 170m throw and can back you up for up to 30 days. 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. 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. The case is fully compatible with Baton 4 and Baton 3 and supports storing and charging the S1R II, Perun Mini, and Perun 2 Mini.