IP54 for unit, IPx6 for battery assembly (resistant to dust, water, spill). Dustproof: Foreign material is prevented from getting inside the vehicle. The amount of dust that can get inside the Segway miniPLUS will have no effect on the functioning of the unit’s boards. Waterproof: Cannot prevent water from getting in at all, therefore; do not wash it with water directly but use a wet cloth to clean your vehicle instead. Do not ride the vehicle or minimize your speed in heavy or moderate rain to prevent accidents (e.g. falling).