This scale is a mini professional digital scale with 8 units of mg, g, oz, tl, dwt, gn, ozt and ct, designed for weighing gold, jewelry, powder or medicinal materials, etc. Features: - Wind-shelter Design: Prevent influencing the weighing accuracy by the interference of external environment. - Compact Size: One-hand handle, easy to carry - Three Modes of Power Supply: USB Plug-in Use/Use after USB Charging/Use with 2 * Battery(not included), more convenient. - Optional Capacity: 10g/20g/50g/100g capacity with 0.001g accuracy. - Weighing Accuracy: Accurate and professional digital milligram scale. - 8 units to switch: mg, g, oz, tl, dwt, gn, ozt and ct. Multifunctional scale for weighing gold, jewelry, powder or medicinal materials, etc. - Count and Tare: The count function gives you an accurate count and tare weighing function ensures a more precise result. -Adjustable Power-off: Auto Power-off after 60/120/180 seconds or manual shutdown. Specifications: Material: ABS Color: Silvery Plural Capacity/Accuracy: 100g*0.001g/10g*0.001g/20g*0.001g/50g*0.001g(Optional) Units: mg, g, oz, tl, dwt, gn, ozt and ct Power Supply: Use with 2 * AAA battery(not included)/USB Plug-in Use/Use after USB Charging Power Off: Adjustable. Auto Power-off after 60/120/180 seconds or manual shutdown. Function: ON/OFF, Tare, Unit Switch, Count. 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*1.69in Package Weight: 291.6g/10.29oz Package List: 1 * Digital Scale 1 * Weight(100g) 1 * USB Charging Cable 1 * User Manual(English)