The SMOK X Cube ULTRA comes with detailed instructions, however here are a few pointers.
Wattage Memory Modes: Enter into memory mode menu, press the -/+ button to adjust wattages as you like, and you can set up 16 memory modes (M1-M16) in all.
Our App: Smart BEC (Smart Bluetooth Electronic Cigarette) applicable to Android 4.3+ and IOS 7.0 systems.
Bluetooth Version: Bluetooth 4.0 Technology Low power consumption.
Replaceable Battery Design: The X Cube ULTRA takes two 18650 batteries (not included), which can be replaced.
You do not need to wait for charging at all.
Spring-loaded 510 Connector: It will significantly improve the connectivity.
Bigger OLED Display: It presents all key pieces of information.