superb coil life. I have mine set to advanced, and it is perfect. never fails. never floads, never dry hits, and if it feels like its dry, With the ability to push liquid up, and suck liquid back down. I have never had to other then to show people. I just push the fire button, and the juice is their. I use this for Freebase, but you can use it for salts if you slow the pump down. I like to mix the two.

Check out the YiHi SX Nano S Pod System, featuring an integrated 900mAh Battery, 3 Power Levels, and is equipped with the ESS Driver System for auto squonk. Constructed from durable zinc-alloy, the chassis of the SX Nano S Pod System is impact-resistant and encases the SX681J Chipset, delivering a three-tiered power output system. Outfitted with the intelligent ESS Driver Electronic Spray Squonking System, the SX Nano can detect when the atomizer coil becomes too hot and delivers eJuice or nicotine salts up to the atomizer coil. Featuring a 2mL eJuice reservoir, the SX Nano S keeps the reservoir away from the heating element of the atomizer to keep the juice fresh and unadulterated.

YiHi SX NANO S Pod Mod Kit Features:
YiHi SX681J Chipset
Dimensions - 87.4mm by 39mm by 17.9mm
Integrated 900mAh Battery
3 Power Levels
Zinc-Alloy Chassis Construction
Intuitive Firing Button
OLED Display Screen
Two Adjustment Buttons
ESS Driver System - Electronic Spray Squonk
Adjustable Pump Speed
2mL Reservoir Capacity
Bottom Feed System
YiHi ADA V2 Atomizer
YiHi SX Nano ADA Disk Coil Series
0.6ohm Disk Coil
Drop In Coil Installation
Dual Airflow Top Cap
Proprietary Threaded Connection
Dry Hit Protection
Low Battery Protection
No Atomizer Protection
Short-Circuit Protection
MicroUSB Port
Available in black or green.

Includes:
1 SX Nano S Device
1 0.6ohm SX ADA V2 Atomizer
1 0.6ohm Disk Coil
2 Reservoirs
1 USB Type-C Cable
1 User Manual
1 Warranty Card