... memory, supports downloading multiple applications Large capacity battery, over 400 transactions per charge Integrated wireless communication MODEM, GPRS/CDMA/ ... to external device Supports FTP remote download High speed thermal printer, up to 28 lines/sec, easy load style, ... 2150mAh, 7.4V, more than 40 hours standby time, supports 400 transactionsWorking EnvironmentTemperature: 0°C ~ 50°C(32°F ~ ...