Features: - Qualcomm Multimode Chipset, support world mode network, TDD-LTE / FDD-LTE / UMTS / EDGE / GSM. - Low-power energy and powerful battery, endurance 18~24 hours, working all the day. - Built-in powerful 5200mAh power bank to charge smart phone or tablets. - Support Dual-SIM, Flexible selection operator. - Up to 10 users access to WiFi. - Exquisite design, small size and light weight. Platform: CPU: Qualcomm MDM9215 ROM+RAM: 2Gbit + 1Gbit RF: WTR1605L PMIC: PM8018 WIFI: AR6302 Technical: TDD-LTE: 3GPP, 3GPP2 Release 9, Category 3, up to 68M DL and 17M bps UL FDD-LTE: 3GPP, 3GPP2 Release 9, Category3, up to 100M DL and 50M bps UL UMTS: 3GPP Release 4, up to 384 Kbps DL and UL DC-HPSA+: 3GPP, 3GPP2 Release8, up to 42Mbps, Category 24, 5.76M bps UL HPSA+: 3GPP, 3GPP2 Release7, up to 14.4Mbps , Category 10, 5.76M bps UL EDGE: 3GPP Release4, Multislot class 12, up to 237 Kbps Frequency Band: TDD-LTE: B38 ( 2600MHz ), B39 ( 1900MHz ), B40 ( 2300MHz ), B41 ( 2500MHz ) FDD-LTE: B1 ( 2100MHz ), B3 ( 1800MHz ) UMTS: B1 ( 2100MHz ), B2 ( 1900MHz ), B5 ( 850MHz ), B8 ( 900MHz ) TD-SCDMA: B34 ( 2000MHz ), B39 ( 1900MHz ) GSM: B2 ( 1900MHz ), B3 ( 1800MHz ), B5 ( 850MHz ), B8 ( 900MHz )