CCELL Sandwave 510 Battery boasts 3-level power, an adjustable voltage switch, viewing window, and can be used with wax attachments and other 510 accessories. Constructed from plastic polymer, this device is lightweight and features a silicone wave grip. Paired with 3 power levels ranging from 2.8V to 3.6V, the adjustment setting switch is located on the front, and designed for enhancing both flavor and potency. Offering a 510 thread, this is ideal for cartridges with a super thick consistency. There has an oil viewing window, you can monitor your oil level, and change to another one. Features • Dimensions: 60H x 38.2W x 16.2D (mm)/ 2.36H x 1.5W x 0.64D (in) • Battery capacity: 400mAh • USB-C charging • Voltage Output: 2.8-3.2-3.6V • 2.8V: For maximum flavor • 3.2V: For a well-balanced experience • 3.6V: For maximum vapor • Chassis Material: Plastic Polymer • Drop-in magnetic connection compatible with 510 thread cartridges • Inhale activated • Connection: Thread 510 • Voltage Switch • Viewing Window • LED Indicator Light