Ceramic tip 30 mins to charge Lasts at least 50 uses per charge USB C charging cable included To clean, press button to warm and wipe surfaces with a Q-Tip The Puffco Hot Knife is an electronic heated loading tool. It makes loading your concentrates a simple, clean, and effective process. No more dirty dab tools, sticky residue on clothing or surfaces, or having to wipe concentrates on the side of the bowl. Just hold down the button, and your oil drops right off in 3 seconds. *Caution – tip gets very hot – use cap to store when finished.