Smok really came to play with the Smok RPM40. This handheld beast features adjustable wattage from 1-40W, which you can easily change and view via the 0.96" TFT LCD screen. The screen will also show your voltage level, coil resistance, puff count, and battery level. It comes with a 1500mAh built-in rechargable battery and a 2 hour charge time. The RPM40 adopts the internal IQ-R chip, shortening the firing time to 0.001 seconds for an instantaneous firing response. RPM40 has a clean classic design and each pod features a comfortable high gloss mouth piece. You can choose between the RPM Nord pod, specifically designed for all nord coils or the RPM Standard pod, which will fit any RPM coil. The RPM mesh 0.4ohm coil is newly designed for the best flavour and excellent vapour production.