... 3USB interface 4Send and receive voice, data, fax, email, SMS, MMS Baiyi USB wireless GPRS modem Dual-band 900/ ... 70Size98*54*25mmWeight130gAccessories: USB data cable, antenna, CDBaiyi USB wireless GPRS modem Dual-band 900/1800MHZ USB interface Send and receive voice, data, fax, email ... temperature -20 -+55Storage temperature:-25 -+70Size98*54*25mmWeight130gAccessories: USB data cable, antenna, CD