Specification: Color: Black Size: 18.2 x 7.3 x 2.2cm (L x W x H) Power by: 2 x 1.5vzinc-manganese dry batteryAAA battery( Not include ) Load capacity: 50 kg, d=10g Error Range: 5~10d Weighing Unit: Kg, Lb, JIN, OZ ( 1kg=2.2Lb=2JIN=35oz ) Display: LCD With Tare Function Wide LCD screen display, easy to read Low power consumption, Low battery The scale will automatically switch off when it is in non-use condition in order to save power.. Press the TARE button for 2-3 seconds to turn on or turn off ""Lock"" function. Note:Need lift the item on the hook slowly, and keep it steady.if not, each time it lifts, the digital scaleholdsdifferent number. The digital scale is Low power consumption electronic goods,Ni-mh AAA battery (Rechargeable Battery ) can not turn on the digital scale. Package inlcude: 1 x 50kgDigitalScale"