Topsignaljammer Offers Free Shipping Service WorldWide! We strive to provide you with with the best convenient shipping options.
1. Delivery time varies from your location
2. Customs clearance may delay the arrival of the items to you
3. We will ship out your order within 24 hours after we accept your order and payment
Regarding returns due to product defects, we will refund you within 7 days.
If there is a product quality problem, please confirm the product quality problem first. Topsignaljammer will provide round-trip logistics costs.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Same/next Day Fast Shipping, Delivered within 7-10 Days
We will arrange the production of the signal jammer within 24 hours after receiving your payment order and arrange shipment within 48 hours.
Although our 4G cellphone scrambler has only 4 antennas, it does not mean that it can only interfere with four frequency bands. Our product is configured to continuously and simultaneously interfere with 8 different frequency bands.
You can freely choose the frequency you want to interfere with, unlike other portable signal jammers, where one antenna can only perform fixed single interference. Although our Cellular Blockers for Home Use has only 4 antennas, it does not mean that it can only interfere with four frequency bands. Our product is configured to continuously and simultaneously interfere with 8 different frequency bands.
What are the eight frequencies mentioned above? You can refer to the following interference frequency range table:
Antennas 1-2 | CDMA: 850 – 894MHz |
GSM: 925 – 960 MHz | |
Antennas 3-4 | PCS: 1920 – 1990MHZ |
3G: 2110 – 2170 MHz | |
Antennas 5-6 | 4G LTE: 2300 – 2400MHz |
Wi-Fi 2.4G: 2400 – 2500MHz | |
Antennas 7-8 | GPS L1: 1550 – 1580MMHz |
Glonass L1: 1570 – 1620Mhz |
On the front view of the 4G Android cellphone jammer, you can see that it has eight separate switches, and when operating, there is a mini indicator lamp above each switch that will flash, so that you can understand which frequency band the target of interference is or check whether it is working properly.
There are many other possibilities for this mobile phone signal jammer. After you purchase this product, we will give you a free car charger, which is adapted to the DC 12V power interface. In this way, you can use the 4G Android Cellphone Jammer in your car.
I believe that anyone who is tracked will be unhappy, so our product has anti-GPS positioning technology, but it can only block GPS L1 & Glonass L1 signals.
For unreasonable Bluetooth speaker players, you can turn on the corresponding DIP switch(Band Switch) to stop their behavior. This jamming device can block signals within a range of 20 meters. I believe this is enough for you.
Product Technical Parameter:
Packing list:
If it is a handheld signal jammer with a battery, please fully charge the signal jammer before use, and do not use it while charging.
If it is a desktop signal jammer, please connect it to the power supply while using it.
If it is a GPS signal jammer, please plug the signal blocker into the car's interface or USB interface.
If you need any help, please feel free to contact us. Email: topsignaljammer@outlook.com
If you choose to Free Shipping, then you need to wait 7-10 business days. We will send a tracking number to your for cargo tracking.
If you choose to Expedited Shipping, then you need to wait 4-7 working days. We will send a tracking number to your for cargo tracking.
All items for sale on our website come with a 1-year warranty. We offer free repair or replacement services and customer support during the warranty period. If you have any question, please contact our support team.
We want you to be completely happy with your purchase, which is why we accept returns within the first 30 days from the date of purchase. Full details can be found on our refund & return page.
A replacement on the topsignaljammer is also acceptable, If the customer's own want to exchange goods, the logistics cost by the client's own.
Receipt after goods arrive, within a week, together with the customer contact customer service personnel. To sign for the goods cannot be damaged, guaranteed to be complete, no stains. Return to the goods can not be modified, amended.
After the logistics delivery, not without reason cancel the order, please make sure the good before order .
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