Specification: Material stainless steel + ABS Modes gram, oz, t1, ct Functions Automatic calibration, Tare function Minimum weighing 0.03g Accuracy 500g/0.01g; 1000g/0.1g Maximum weight 500g/1000 Type of battery 2 x AAA batteries (batteries are not included)No built-in battery Feature: 5 Measurement Units: There are five Measurement Units: gram / oz / gn / ct / tl, quick to convert measurement in seconds, easy to translate weight. Convenient for you to choose the proper unit by pressing the mode button"UNIT". Energy Saving: You can charge with USB while using the mini scale, 60 seconds power off to save energy. Battery: 2 x 1.5V AAA Batteries(batteries are not included). Easy to Use: Designed with a stainless steel platform and a protective flip cover. You can use the tare function to determine the net weight of any product by subtracting the weight of the tray. LCD Display: Large LCD display with back-light is designed for your easy reading. Compact: Small scale with pocket-size design makes it a portable scale for weighing food, tablets, powder, gemstones, coins or jewelry at anywhere, convenient to use. Package includes: 1 x Digital pocket scale 1 x Instruction