Model: E1220s-2(E1220s-1 E1220s-3 optional) Type: HUAWEI UltraStick E1220s 3G bands: HSUPA/HSDPA/WCDMA::2100/900MHz 2G bands: GSM 1800/900 MHz Data Rate: HSDPA: up to 14.4Mbps(DL); HSUPA: up to 5.76Mbps(UL) Chipset : Balong V3R2 Internal Antenna(not external aerial port) Features: Plug & Play(HS USB 2.0), Data, SMS and PCM Voice Standard SIM socket OS: Android & Windows Temp: -10~55? Size: 65mm X 35mm X 3.3mm Weight: <30g