The MFS Chiyou is a high quality Mechanical MOD that features an adjustable silver-plated center pin and adjustable airflow control.

Mechanical MODs have no electronics / no protection circuit and should ONLY be used with IMR type batteries with a Short/Safety Fuse.

The Chi-You has a bottom switch design that is lockable and is available in a solid Stainless Steel.

Each of our Chi-You MODs have an individualized serial number and has removable tubes which allows you to use IMR 18350, 18490/18500, or 18650 Li-Ion Batteries all in one device!