Shenzhen Harvilon Technology Co., Ltd. was founded in 2006 , is a high-tech enterprise integrating R&D , production and sales . Harvilon focuses on wireless data terminals . The products and services cover 3G / 4G / 5G MIFI , 4G wireless data module and 3G / 4G / 5G wireless router . In the fields of 4G LTE module , 3G / 4G / 5G wireless router , 3G HSPA , WCDMA , 3G /4G / 5G Router and 3G / 4G /5G Module , Harvilon provides industry partners with a complete set of mobile terminal solutions ranging from product planning , conceptual design to product delivery and after-sales service .