Feature:1. Can quickly identify the authenticity, there is the alarm sound of alarm2. Using purple light magnetic detection, the effect is more accurate3. Wide range of application, can identify foreign currencies, invoices, etc.4. Small size, easy to carry and store, easy to use and with good performance5. Strict quality control and quality assurance, high safety factor, can be used with peace of mindSpecification:Item Type: Portable Money DetectorSpecifications: 2 in 1 (purple light magnetism)Battery Model: Button Battery LR44Number Of Batteries: 4Ship with battery)Single Battery Capacity: 140 mAhTotal Product Capacity: 4 x 140 = 560 mAhSize: Approx.88 x 22 x 22mm / 3.5 x 0.9 x 0.9in.Package List:1 x Portable Money Detector