*China, Japan and USA: Currently service available for Mi-Fi, usb-modems or tablets (eg iPad) with following LTE band support:
China: 3, 41;
Japan: 1, 11, 18/26, 41; 
USA: 25 (MANDATORY BAND), 26, 41. 
Please check LTE band in tech specifications of your Mi-Fi, usb-modem or tablet.