【Two Power Supply Methods & Warning】 It can be powered by USB or battery. Built-in rechargeable lithium battery and USB charging cable. AAA batteries do not need to be replaced frequently, and USB charging is more worry-free and environmentally friendly. 【Warning】 To avoid burning the product, please do not use the fast charging cable to charge the product. Please note that only non-fast chargers can be used. 【6 Units of Measurement & 【Auto Shut-Off Function】 There are 6 units of kg, g, lb, oz, tl, ml that can be switched, so you can weigh different objects comfortably. It will automatically shut down after 180 seconds of no operation, saving electricity. 【Large Weighing Surface】 Brushed metal surface. You can even weigh objects from 1 g up to 10 kg. 17.5 x 15 cm - Brushed metal surface on a large surface - Elegant and easy to maintain and clean. 【Slim and Lightweight Design & Multifunctional】 The thickness is only 19mm, which is slim and portable. There are hook holes on the back,