Tips: We have two models on Retailer: USB charging model---Which lasts about 150 days on a single charge Battery model(no battery) - Need To Purchase Batteries On Your Own(2*AAA batteries)

The upgraded model is designed for the United States, KG/LB can be switched, and the temperature display is ℉,highly accurate, and maximum capacity of 400 pounds

You can For Switch units easily by pring the button at the bottom