"Featuring a unique brew ratio display for real-time power-to-water ratio observation and adjustable brewing parameters, the ZeroHero Mini Ratio Scale helps you ensure the perfect cup of coffee. It auto-activates when the weight exceeds 30g or upon touch, offering seamless operation. With multiple modes including Brew, Ratio, and Espresso, it caters to both pour-over and espresso needs. The long-lasting 1800mAh battery provides up to 18 hours of continuous use. Material: PC/ABS/Silica gel Weighing range: 0.2g- 2000g Color: Black Size:13.5 *1.2 * 2.2 cm Weight: 193g"