... products such as GSM FWP, GSM wireless POS, SMS Printer, air voucher charger etc.. Can you find another one in UK? All ... , antenna, battery, AC adaptor, PCB and components, GSM module, thermal printer and firmware, among them, only PCB and firmware is designed ... these parts inside such as GSM module, shell, antenna, thermal printer is designed and manufactured by other companies. Furthermore, if it ...