Because of the IPX6, this power bank can protect against water immersion, drop and dust, which can easily deal with hostile outdoor environment. Charging management, electric chip protection and synchronized boost and rectification are integrated. Freely falling from 8 meters high altitude, it is safe and sound. With the compact design, reduce the strike hit and protect the battery. The side of the TANK use non-toxic silicone material and we apply the natural environmental Kraft paper package, which avoids excessive package while is recyclable, economical and environmentally friendly. Silicone material can most likely both protect the product and make you feel good, and the flow lines and the cool power display lights after cutting misalignment processing strongly emphasize the overall movement sense.