Cell Phone Signal Blocking

3G-Cell Phone-GPS Signal Jammer with Signal Band Control Swith This newly designed model difference from others is its Band Control Swith Function. It can block the the cell phone,Website:http://www.jammerwill.com, gps and 3g signal at the same time, but when you just want want to block the cell phone's signal, but not bloking the gps and 3g signal, you can use the swith on the item's side to control that. Turn off the gps and 3g, then it will just stop the phone's signal. What functions you need, what functions you don't need, now you can use the swith to make what you need.Specifications■Main Function: High Powered Cell Phone, 3G, and GPS Signal Jammer ■Isolating Signal Bandwidth: - CDMA: 850mhz - 894mhz- GSM: 925 - 960Mhz - DCS: 1805 - 1880MHZ- PHS: 1900 - 1990MHZ - GPS: 1500 - 1600Mhz- 3G: 2110 - 2170MHz ■Antenna: 4x Omni-directional Antennas ■Coverage Area: 5 to 15 meters ■Power Source: Wall plug, car adapter, or built-in battery ■Internal Battery: 1600mAh rechargeable LI-ION ■Typical Battery Life: 2-3 hours of continuous use ■Total output Power: Up to 3W ■Operating Temperature: -10 to +50 Celsius ■Operating Humidity: 5% to 80% ■Power supply: 100-240v, 12v  ■Approved: CE / FCCPackage Contents■1 x Signal Jammer with 4 Antennas■1 x Power Adapter■1 x Car Charger■1 x User Manual - EnglishProduct Reviews:1.Very good store. I will recommend to friends. Thank you.2. thanks for the good package, really like it,3. lots of choices, decent prices - would like to see more reviews on items, though4. good sample, hope the further cooperation will be smoothly.5. I THINK I WILL BACK FOR MORE, THIS JAMMER IS REALLY COOL, HOPE OTHERS ARE GOOD AS WELL. SEE YOU, GUYS.6. ONE I ORDERED,THANK YOU GUY SO FAST DELIVERY AND SO CONVENIENT USE FOR ME, GOOD LUCK!7. Fantastic product, works well! UP,UP,UP!