USB-BUSINESS TECHNOLOGY Co., Ltd produce tennis ball machine,shuttlecock shooter,racket stirnging machine in shenzhen. And we sell brand GPON ONU,EPON ONU,3G modem and router for some years. Such as HG8245,HG8240,HG8245H,HG850A,F660,F620,F460,F420 and so on.We have customers all over the world. We get customers because of our good products and best servive. Currently we have established stable relationship with many customers in European market and US market. Our main advantage is Reliable quality and Excellent service.We also are a professional exporter for huawei USB modem and huawei router. Our main products are huawei 3G 4G LTE USB modem E220, E1550, E160, E1750, E169, E176, E1820, E355, E353, E3131, E369, E372, E392, E398 and huawei 3G 4G LTE router E585, E5830, E586, E960, B970, B970b, B220, E589, B660. B683 and so on.All our products come with CE, FCC and RoHS certificate.The warranty for our huawei products are 12months. For USB flash and memory cards, the warranty is 3years. Welcome any feedback from you to improve oursleves.We have the advantages below:1. Competitive price according to your quantity.2. Strict quality control3. Prompt response, good service before and after sales.4. Prompt delievery