We were sitting around complaining about having to screen our calls from so many telemarketers, and wishing that we had a way to block certain phone numbers, so we took to Perfectjammer and did some exploring and discovered this cell phone jammer. It had great reviews, and now we know why.....it's a great product. Easy to block phone numbers, with the touch of a large red button. And, if you don't reach it in time to push it during the call, you can review the previous calls, and choose which you want to block as well.
Review BT8 Cell Phone 3G 4G Jammer
My roommate is looking for me every night, because he plays the legendary voice on the Internet is super noisy, so I bought this Jammer, and now I finally sleep, my roommate gets justice. After using this WiFi and GSM cell phone jammer, now I can sleep well.
This powerful portable jammer can effectively shut down all Wi-Fi networks, GPS devices and cell phone signals (on GSM, 3G, 315, 868 and 433 frequency bands) without interfering with other electronic devices. It's really like that!
I am very satisfied with this Jammer. From now on, I can fully enjoy my privacy. Considering the quality and function, the price is cheap. Thank you, will come to buy again!