The Uwell Crown IV Checkmate Edition Mod features a classy and sleek design with a durable grip to make it easy to hold on to. The bottom of the mod features a silicone material to help with slipping and sliding on smooth surfaces as well! Features: Power Range: 5-200W Resistance Range: 0.1-3.0ohm (VW) / 0.1-1.0ohm (TC) Dual 18650 Rechargeable Battery (not included) Micro USB Charging Port Includes: Uwell Crown IV Checkmate Mod Micro USB Cable User Manual