Features: Automatic filling, instant heat-up, and dishwasher safe glass. 510 thread compatibility for concentrates and herbs 4 Heat settings: 2.5 V, 3.0V, 3.5V, 4.0V Includes: 1 x Zenco Uno 1 x Uno Glass 1 x Vapor Coil - Ceramic 1 x USB Charger 1 x Concentrate Scoop 1 x Cleaning brush Contains: Removable Food-Grade Silicone Diffuser All Zenco glassware is interchangeable 1 Year Limited Warranty