Makita Cooler & Warmer Box, DCW180Z is an 18 V lithium-ion corded & cordless cooler & warmber box that features a compressor type cooling system for efficient cooling of the inside temperature down to -18°C This Cooler & Warmer Box also features a warming function with a heater able to warm in internal temperature to 60°C Cooler & Warmer Box has a built-in USB charging port located inside the enclosed battery box for charging mobile devices LED display of this box Makita Cooler & Warmer Box provides a clear display of the inside temperature, set temperature and battery fuel gauge Makita Cooler & Warmer Box has 20 L storage capacity that holds 20 x 500 ml water bottles or 4 x 2 L water bottles Cooler & Warmer Box has built with a highly durable design -IPX4 water resistance Cooler & Warmer Box does not include battery & charger Makita Cooler & Warmer Box comes with 1 year warranty against manufacturing defects