ELeaf iStick Pico 75w Battery Mod –
Sony vtc6 18650 –
The iStick Pico, just like its name, is preferable, innovative, compact and outstanding (PICO). Powered by single interchangeable 18650 cell, it provides you with 75W maximum output and switchable VW/Bypass/TC-Ni/TC-Ti/TC-SS/TCR modes.
Firmware upgrading: The firmware can be upgraded by connecting the device with a computer through the USB port via a micro USB cable.
Comes in Black or White just let me know on checkout
http://www.eleafworld.com/softwares-for-istick-pico/ pico firmware upgrade