Wellon ACE 2-in-1 400mAh VV Mod $5.90
This tiny mod features a light and compact design, easy to use single button design, built-in 400mAh battery, a 10 second pre-heat function, a resistance range of 1ohm to 3ohm, three power levels (3.4V, 3.8V, 4.2V), and multiple protections.