You have come to the right place and I will try my best to answer all your questions. First of all, I must say that we may provide you with an interfering device that may block the 4.9 GHz signal, it will be a Wi-Fi signal blocker. Generally, Wi-Fi runs on 2.4 and 5 GHz frequencies, but some devices can also use 4.9 GHz. Therefore, our signal cell phone jammer may solve the problem. If not, please rest assured, if you will send the device back within 14 days without damage, we can refund it. We also have several options! Another option is to adjust our adjustable interference device RCJ40-D. It can be made to work at a frequency of 4.9 GHz. The good news is that you will be able to adjust the signal power and control the interference radius through this operation. We should mention that the device can work 24/7, but its main disadvantage is that it is a desktop jammer. Therefore, you will not be able to carry it with you. If you don’t need a portable interference device, then this may be the best option Perfectjammer can provide.
If you frequently use the Bluetooth connection of your smartphone, we should also warn you that your smartphone will be hacked. You can read more about Bluetooth hackers here. We recommend that you always turn off the Bluetooth module when you don’t need it. To provide more protection, you can try to use Bluetooth interference devices to ensure that your mobile device is completely safe. Regarding warranty and returns-our company is the first company in the market to provide a one-year warranty on all our products, so you can ensure their quality. In addition, if you have any questions about signal jammers, please feel free to ask questions here. If there is anything that makes you dissatisfied with our products, please feel free to contact our sales team and they will serve you wholeheartedly. Despite the reasons, you can still get a full refund within 14 days after the order is delivered.