This scale is a professional digital mini scale with 8 units of mg, g, oz, tl, dwt, gn, ozt and ct, designed to weigh gold, jewelry, powders or medicinal products, etc. features: - Wind shelter design: prevents influence of the weighing accuracy by interfering with the external environment. - Compact size: one-handed handle, easy to carry - Three power supply modes: USB plug-in Use / Use after USB charging / Use with a 2 * battery (not supplied), more practical. - Optional capacity: 10g / 20g / 50g / 100g capacity with an accuracy of 0.001g. - Weighing precision: Precise and professional digital scale in milligrams. - 8 units to switch: mg, g, oz, tl, dwt, gn, ozt and ct. Multifunctional scale for weighing gold, jewelry, powder or medicinal materials, etc. - Counting and tare: The counting function gives you a counting precision and the tare weighing function ensures a more precise result. - Adjustable shutdown: automatic power off after 60/120/180 seconds or manual shutdown. Characteristics: Material: ABS Color: silver Plural capacity / Accuracy: 100 g * 0.001 g / 10 g * 0.001 g / 20 g * 0.001 g / 50 g * 0.001 g (optional) Units: mg, g, oz, tl, dwt, gn, ozt and ct Power supply: use with 2 AAA batteries (not supplied) / use the USB plug-in / use after USB charging Power Off: adjustable. Automatic power off after 60/120/180 seconds or manual shutdown. Function: ON / OFF, Tare, Unit switch, Account. Item size: approx. 11 * 6.3 * 1.5cm / 4.33 * 2.48 * 0.59in Item weight: 105.5g / 3.72oz Package size: approx. 19.2 * 10.4 * 4.3 / 7.56 * 4.1 * 1.69 inch Package Weight: 291.6g / 10.29oz Package list: 1 * digital scale 1 * Weight (100g) 1 * USB charging cable 1 * User Manual (English)