Professional Attention and Professional Care


Modem3G Quality Control From Sourcing to Delivery

At, even before your order is placed – whether as a wholesaler, distributor, or someone who's just looking to buy the latest gadget – our products are streamlined into a system that checks and double checks quality, from sourcing to delivery.

Our Streamline Service:

     1. Sourcing your products
     2. Processing your product order
     3. Testing your products
     4. Packing your products
     5. Tracking your products




Sourcing Your Products

While you're sitting in the comfort of your own office or home to browsing on Modem3G's products, we're already busy selecting the best products at the best prices, all with you, the customer, in mind. With offices in Shenzhen and HongKong, Modem3G works with the best and most trusted manufacturers throughout China and worldwide, selected for quality of their products, reputation, reliability, and whether they share our passion for serving customers like you.

After a rigorous inspection and vetting process of the products we know shoppers are interested in, we make them available to you at unbeatable prices, since we source them straight from most of the manufacturer. Modem3G is also plugged into the market news wires for hot new lines, the latest designs, and the best quality products. The upshot is that shoppers can find any ZTE and Huawei's products at, from USB Modem, Mobile hotspot to Android Smartphone and Tablet.


Processing Your Product Order

Upon clicking "Complete Order," your friends at Modem3G spring into action and immediately begin processing your order. One employee reviews the details of your order, checking for anything that might delay processing, while another speeds off to pull the inventory from our shelves. Meanwhile, an email confirmation of your order will have already arrived in your inbox.


Testing Your Products

Even though our suppliers are all trusted manufacturers of quality items, we don’t take any chances with your specific order. All products go through an exhaustive Q.C. procedure:



Packing Your Products

Modem3G's packaging and delivery team runs like clockwork, even if we do say so ourselves. Items are always carefully inspected for any manufacturing and design defects before they're shipped off to ensure that the item you fell in love with online is the item you receive from our courier. Our team members check order slips with the original online purchase confirmation, and then review the product pulled from the shelf to make sure it checks out with the product listed.

Then, and only then, does the team move on to packaging the order, doubling-up (and often more) on the bubble wrap and tape. Next, it's out the door in safe hands with our trusted and verified couriers.

Tracking Your Products

Once your product leaves our doors, we keep on tracking it until it reaches yours. Modem3G's customer service team is always working behind the scenes to address your every need and query. We track your shipments real-time, and are available at your convenience to answer any questions, whether by email, live chat, or over the phone. No matter the issue, we're always here to serve you.





12 Months Warranty
With all our products manufactured to the highest quality standards we are confident that you will enjoy years of excellence.  However, occasionally even the best quality products can sometimes go wrong . That is why at JA CORP., we offer all our customers a full 1-year Warranty against product quality failure.
If your usb modem within its guarantee period we will arrange for replacement to you within 1 week. You can return us with the RMA no. If out of guarantee period, we will offer our repair service to you, charge with very reasonable repair fee.

 Delivery Guarantee :

  • 1,Orders will be shipped out within 1-3days normally after receipt of payment.
  • 2,Delivery may be delayed during Christmas, Chinese new year, and other holidays. We will try our best to ship out as early as possible.
  • 3,Tracking no. & shipping documents will be sent to customer within 1 business day after delivery.

Our Hot line: 00852 69499341


JA CORP. Guarantee also covers:

1,All our products are brand new and original, 100% trustful
2,We do not sell second hand or refurbished modems, do not cheat any one of our customer
3,We have after-sale service , all your questions will be replied within 2 business days
4,We contact our customer once a week either by email or phone to check if they need our further assistance.