... Card Reader Ultrasonic Plastic Welding Machine 1.20KHz/2000W 2. Two ultrasonics weld unit with film rolling system Credit card ... automatic tracking frequency functions. 2. failure to automatically detect and display. 3, five-step adjustable amplitude without replacement ... -acid batteries, 3-inch floppy disk, U disk, SD card, CF card, USB connectors,Bluetooth. Toys,stationery: folder, album, ...