Main Features:- 1.6-inch large screen- Full Netcom 4G- Built-in GPS FunctionSpecification Brand Senbono Model Air1 bluetooth Version BT 5.0 CPU Four Nuclear1.3G SIM Card Nano SIM Internet 4G Frequency Band GSM: 850/900/1800/1900 WCDMA: 850/2100 LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B20 LTE-TDD: B38/B39/B40/..