Cell phone blocker for schools - cellular phone signal booster for home

Handheld Four Antennas Signal Blocker Jamming for GSMCDMADCSPCS3G2100Wi-Fi
Handheld Four Antennas Signal Blocker Jamming for GSMCDMADCSPCS3G2100Wi-Fi
Portable handheld 4 Band CDMA/GSM/3G UMTS/4glte Wi-Fi Cellphone Jammer/Blocker Model: P4A Brief Description:  Portable Black color 4 bands cell phone jammers with 4pcs Omni-directional antenna can block 2G/3G cell phone, and WIFI, Bluetooth. Palm sized are highly portable and easy to carry. Reasonable design can’t affect normal work and other equipment when press the switch OFF/ON for other frequency. The effective range can up to around 25 meters. Long life battery can work for a long time. We can charge everywhere by AC or car charger.   Specifications: Item model#:P4A Jamming for 2G/3G all type cellphones,and wifi/Bluetooth Band 1:GSM/CDMA:851-894MHz; Band 2:DCS/PCS:1805-1990MHz; Band 3:3G2100:2110-2170MHz; Band 4:WIFI:2400-2500MHz(Wireless Camera 2.4G: 2400MHz-2483MHz;);  Blocking System: Nextel, Wi-Fi, AMPS, TACS, NMT, GSM, DCS, CDMA, PDC, TDMA, PHS, IDEN, W-CDMA, UMTS, 3G; Frequency: Wi-Fi: 2400-2500Mhz; CDMA/GSM: 850-960 MHz; DCS/PCS: 1805-1990 MHz; 3G: 2110-2170 MHz; Total output Power: 2 watt Radius range: 5-20M@ -75dBm depending on the mobile service provider’s network condition; Power supply: AC110-240V 12V car power plug; Built-in rechargeable Battery:2000mA/h; Built-in battery working time : 90minutes Temperature: -10℃ to +50℃ Antenna: 4pcs Omni-directional antenna Colors: Black Package information: Device Size:   109*61*30mm Package Size: 210*152*85 mm Gross Weight: 0.75Kg

cell phone blocker for schools

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