... applications Large capacity battery, over 400 transactions per charge Integrated wireless communication MODEM, GPRS/CDMA/WIFI/GPRS&Wi-Fi Integrated ... PSTN MODEM, supports PSTN MODEM coexists with wireless Supports full SSLv2/3 TLSv1 2 RS232 Output 5V@500mA ... , DUKPT; Supports dual and triple length TDES; Supports RSA, AESInternal Wireless (Optional)GPRS / CDMA / Wi-Fi/ GPRS & Wi-Fi, ...