Model: handheld POS machine Linux system for urban bus transportation management Dimensions: 200*151*61.5mm Material: engineering plastics, anti-static electricity coating design, be protected from high-frequency interference Display: 3.5-inch LCD display, 320x240 Operating system: Linux 2.6 system CPU: N32905 processor, ARM9 core @ 240MHz Memory: 32MBytes SDRAM, 128MB NAND flash Data capacity: 259840pcs of detailed data for console storage, unlimited data at GPRS storage Card capacity: 91,880,000pcs Working voltage: DC 8-50V Operating temperatures: -25-65°C Storage temperatures: -40-85°C Humidity range: 0-90% RH non condensing Pilot lamp: red, green light Sound prompt: buzzer, single channel speaker (voice report) RFID: can read and write ISO 1443 type A/B electronic tag (incl. combi-card) Supporting card: MIFARE® 1 card, CPU card, UnionPay IC card Frequency: 13.56MHz Interfaces/connectors: RS232, USB Printer modules: can be connected to slip printer-POS58 Positioning mode: GPS Communication modules: GPRS (900MHz/1800MHz), or CDMA (800MHz) Wi-Fi: supporting 802.11n/b/g standards, 150Mbps, 2.4Ghz UnionPay: compatible for PBOC3.0 UnionPay card MIFARE DESFire are registered trademarks of NXP B.V. and are used under license.