Auto on: When you step on the platform, the scale automatically turn on. Auto off: It automatically turn off after work. 2.1" LCD Screen. With low battery indication. With tare function. With Lock and Unlock function. Two modes for unit option: bl and kg. With capacity of 150X0.1KG or 330X0.2LB Powered by 2 * AAA batteries (batteries NOT included). High accuracy. Low power consumption. Decent design. Simple usage. A must buy to of and body shape. Capacity: 150KG Accuracy：100G Unit: LB/KG Power: 2 * AAA batteries (NOT provided) MODE: Switch unit between lb and kg 1. Be off status, ON to turn it on; 2. Be at working status, ON for 3 seconds to turn it off; 3. Be at working status, ON for tare function. Material: plastics Color: Black Product dimensions: 240*150*27mm Product weight: 450g Operation: Step 1. To make sure accuracy, always put the scale on a hard and flat like wooden or marble floor (avoid carpet or soft ). . Gently step on the scale, then the scale be automatically turned on. Stand evenly on the scale without moving and wait until your weight shown on display is stable and locked. Package Contents: 1 x 150kg Personal Portable Digital Scale (batteries are NOT included) 1 xUser manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.