1. Wild LCD screen display with background light,easy to read. 2. High precision strain gauge sensor 3. 300s Auto off 4. Tare function 5. Low battery&overload indicator Pocket scale,mini size,easy to carry and store Capacity:40kg Accuracy:10g Unit switch:kg/lb Background light color:blue Display:LCD LCD screen size:27.9x21.2x1.1mm Item dimension:119x40x158mm Auto off:60s Operation instruction: Please put the scale on flat table 1: [ON/OFF] to switch on 2: You can "M" to unit conversion when 0.0 or 0.00 show on the LCD 3: Put the goods on the scales after using conversion Colour:Black Material:ABS Package Contents: 1 * Travel Luggage scale Only the above package content, other products are not included. Note: Light reflection 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.