4 bands,handheld jamme / portable Signal Jammer ,meeting room /office use Description: This is a portable type mobile phone signal shielding device .It is ...
Product Description Highly portable, Palm Sized, Easy to carry Block cell phone bands, GPS bands simultaneously Good cooling system with Wind slots in both sides and built-in fans design .Nonstop...
Product Description Widely used in following places, such as Conference room, auditoriums, law court, library, exam room, school, cinema, theater,hospital, government, military, finance, security,...
