The Newline Step-On Instant Display scale is an innovative SENSE ON technology scale that makes weighing very easy. There is no need to tap the surface or press a button to turn on the scale. The scale comes on automatically & instantly when stepping on the scale. The scale is very accurate, it measures in 0.2 lb or 0.1 kg increments, and the maximum capacity is 400 lb or 181 kg. The modern tempered glass platform is easy to clean yet durable. Power: two CR2032 lithium batteries (included). If your buying experience from us is less than perfect, (product itself, shipping, package, or anything), Please send us an email. Your feedback is VERY, VERY important to us. We will address any issue within one day (including weekend) and most importantly, we will do everything to make you 100% satisfaction ! All we are asking you: Be happy or give us a chance to make you happy! Press "UNIT" button at the back of scales for changing Kg to Lb or ST.Scale must be placed on flat & hard floor for accurate weight,