... ://www.jammerwill.com, 3G, WIFI Specifications■Adjustable Desktop Five Bands Signal Jammer for Cell Phone, CDMA/GSM/DCS/PHS, 3G■Isolating ... on the mobile service provider's network condition and background signal strength) ■Adjustable outpat power, each band can be controlled separatelyPackage ... , very good,3. very strong, great. is there 4g signal jammer?4. thanks, just a week I got my package, good,5 ...