Functionality: This device is specifically designed for banknote counting and does not include detection features. It comes with an 'add' function to support cumulative counting Portable: Weighing only 0.86 lbs, this compact and lightweight machine is easy to carry and store, adding convenience to your operations. Dual power supply methods: This model is equipped with an AC 100-240 adapter for direct electricity connection or can operate using (batteries not included) Service:We attach great importance to our customers' shopping experience. If you have any questions, please feel free to contact us, we will reply you as soon as possible within 24 hours Important reminder: To ensure efficient counting, neatly arrange the bills as shown in the instructions or pictures provided. This will enable quick and smooth counting