Huawei Vodafone K4510 HSDPA Specifications : Compatible bands: GSM: 850/900/1800/1900 MHz UMTS: 900/2100 MHz 3G HSDPA(Max 28.8Mbps),HSUPA(Max 5.76Mbps) Plug and Play,Pick up emails,Send and receive SMS text messages Size: 89.68 x 12.57 x 29.00 mm Weight: about 31g Support OS: Microsoft® Windows® 7, Windows Vista™(SP2 recommended), or Windows® XP SP3, or an Apple Mac