Huawei E5330 Unlocked 21 Mbps 3G Mobile WiFi (3G in Europe, Asia, Middle East, Africa & T-Mobile USA) (black) E5331 Successor 3G HSPA+ 2100 / 900 MHz data service of up to 21.6 Mbit/s Maximum working time: 5-6 hours with 1500 mAh battery Maximum of 10 wireless users 5 second fast boot , WiFi 802.11b/g/n Huawei E5331 successor