... environments;10. Stand-by time can be over 32 hours.11. Raw ABS material cell, white body:100 ABS, button: 80 ... ± 0.5mm wide thermal paper Communication interfaces RS-232, optional:RJ-11, RJ-45, USBWireless CommunicationsZigBee,GPRS,CDMA,WifiRandom AccessoriesHost, a product description ...