1. Mini RF module for integrating into existing devices 2. Multi-interface: RS232, RS485, USB, TTL, SPI, C&D, ABA1/2, ... ISO7816(T=0,T=1) to enhance security.The Mini size module with multi-interface is flexible to do integration ... Firmware upgradable10.Firmware customized design to meet various requirement Application1. Embedded device, such as Handheld Terminal, Parking Meters, Vending Machines, ...