How about $15.99 Arctic Dolphin VW APV BoxMod?

Arctic Dolphin ADT 50W Temperature Control VW APV Box Mod is the first box mod and the only one with constant temperature control function on the market currently.

Just $15.99 !


Features:
1. With USB Charging Port and heating emission holes;
2. Huge variable wattage power from 1~50W;
3. Best design, nice appearance with good quality;
4. Five safety protection:
5. Short circuit protection;
6. Low resistance protection;
7. Connection reverse protection;
8. High current protection;
9. IC around temperature protection