Compatible with 510 cartridges only. The Hunny Pot 510 Button battery has 3 low heat settings perfect to use with Resin and Rosin 510 Cartridges and comes with a USB charger included. 320 mAh capacity = ~300 uses per charge Usage 3 heat settings;White: Low 2.4VBlue: Medium 2.65VRed: High 2.9VCharge before useWhen ready to use, press and hold the button and inhale through the mouthpiece.Remove cartridge & turn off when not in use Button Settings 5 X Turn On/Off3 X To alternate between the 3 heat settings 2 X Pre-heating 1 X Quit pre-heating Best Cannabis Pairing : Hunny Pot Cannabis - Live Rosin 510 Cartridge - 0.5g