Where can I buy Cell Phone Signal Blocker and some tips for its installations.

<p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;">i think you need a wave bubble RF jammer.&nbsp;</span></span></p> <p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;">it would fit your needs because it is portable and once fully charged it will jamm the GSM and CDMA networks are around 2hours. Change the battery and keep it up for all the work hours. LI-Ion batteries / spare batteries are also available with this deivce</span></span></p> <p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;"><br /></span></span></p> <p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;">regards,&nbsp;</span></span></p> <p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;">varun parikh</span></span></p> <p><span style="color: #111111; font-family: arial;"><span class="Apple-style-span" style="font-size: 15px; line-height: 22px;">+91 9824073896</span></span></p>