... Play, No Drive Long Life Time, No Touch Limit 57" IR Touch Screen AMH-T57 is designed to be integrated into ... Seminar, Home Entertainment, & Recreation, etc. AMH offers various sizes IR touch Screen from 19", 22", 26", 32", 37", 42", 47", 50 ... non condensingPower SupplyDC 5V ± 5%, 270mA~290mACommunication InterfaceUSB Port or RS232 (Plug & Play, No Drive) Communication Distance25Meter SoftwareOperation ...