GSM CDMA 2.5dBi Adjustable Phone Signal Blocker 12 Antennas 40m

Basic Information
Place of Origin: China
Brand Name: GREETWIN
Certification: SGS, ISO9001
Model Number: GW-JA12XF
Minimum Order Quantity: 1pcs
Price: Contact Us
Packaging Details: Box with PE Foam
Delivery Time: 3 Working Days After Received Payment
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 20000pcs per Month
Product Name: 12 Antennas Desktop Signal Blocker Antennas: 12 Pcs 2.5dBi Omni Antennas
Weight: 5kg Power Adapter: Used In Car Directly
Jamming Range: 1-40meters,depend On Mobile Signal Strength Name: Desktop WiFi Jammer
High Light:

2.5dBi Adjustable Phone Signal Blocker


GSM CDMA Phone Signal Blocker


40m 4G WiFi Signal Jammer

12 Antennas Indoor Power Adjustable Cellphone GPS 4G WiFi Signal Jammer Mobile Phone Signal Jammer Signal Blocker


1. each band output power 3 W
2. 10 channels Amount power 36W
3. with high gain Omni antenna
4. for signal GSM CDMA DCS PHS 2g 3g 4g 5g wifi GPS etc customization support
5. RF Connector: SMA
6. Operating Humidity: U
p to 95% rel. humidity

7. Storage Temperature:-40ºC~+90ºC
8. Operating Temperature: -30ºC

9. Reaction time: 3-5 seconds
10. power supply:AC220V/DC24V

Jammer Application
This high power desktop jammer widely used in many field such as:
1.Justice Administration: prison, detention house, reeducation center, public security, court, Procuratorate.
2. Education: examination room, teaching classroom, dormitory, social examination sites, education training institution
3. Conference room of Party and government offices and administrative unit
3. Storehouse of Factory, Workshop, Mines, Assembly
4. Military Place or Important Confidentiality Place
5. Cinema, Theater, Concert hall, Memorial Hall, Auditorium, etc.

Packing list
main jammer*1
power supply*1


( 12 Bands) ( 12 Bands) ( 12 Bands) ( 12 Bands)
850-895MHz: 3W 130-180MHz: 3W GPS L1 1575.42 MHz±10MHz: 2W 130-205MHz: 3W
920-965MHz: 3W 400-480MHz: 3W GPS L2 1227.60 MHz±10MHz: 2W 205-275MHz: 3W
1800-1990MHz: 3W 920-965MHz: 3W GPS L3 1381.05 MHz±10MHz: 2W 275-345MHz:3W
2100-2170MHz: 3W 1800-1890MHz: 3W GPS L4 1379.913 MHz±10MHz: 2W 345-415MHz: 3W
WiFi 2400-2480MHz:2W 2100-2170MHz: 3W GPS L5 1176.45 MHz±10MHz: 2W 415-500MHz: 3W
WiFi & Bluetooth 3G UMTS
4G LTE USA iPhone (AT&T & Verizon) 700-800MHz: 3W WiFi 2400-2480MHz:2W 920-965MHz: 3W 920-965MHz: 3W
WiFi & Bluetooth (850-895MHz) (850-895MHz)
  GSM 900 or CDMA 850 GSM 900 or CDMA 850
4G WiMAX USA Sprint 2500-2700MHz:2W 4G LTE WiMAX2 Europe 2620-2690MHz: 2.0W 1800-1890MHz: 3W 1800-1890MHz: 3W
(1920-1990MHz) (1920-1990MHz)
GPS: L1 1575.42Mhz: 2W 790-870MHz: 3W 2100-2170MHz: 3W 2100-2170MHz: 3W
130-180MHz: 3W 433MHz: 3W 433MHz: 3W 4G LTE WiMAX2 Europe 2620-2690MHz: 2W
VHF Car Remote Alarm Car Remote Alarm
400-480MHz: 3W 315MHz: 3W 315MHz: 3W 790-870MHz: 3W
UHF Car Remote Alarm Car Remote Alarm 4G LTE
173MHz: 3W 173MHz: 3W 173MHz: 3W 2400-2480MHz:2W
Car Lojack Car Lojack Car Lojack WiFi & Bluetooth
315MHz: 3W GPS: L1 1575.42Mhz: 4G LTE Europe 2620-2690MHz: 2W GPS: L1 1575.42Mhz: 2W
Car Remote Alarm 2W
Total: 30.0 W Total: 29.5 W Total 26.5 W Total: 33.0 W
Option: Remote/Alarm Control 315MHz, 433MHz, 868MHz, GPS L2 L3 L4 L5,, LoJack 173MHz,
SAT Sattellite Phones 1520-1670MHz
All Frequency can mix very Flexible, Each module/Band is independent




Contact Details
Hawk Greetwin

Phone Number : +8613005164071

WhatsApp : +8615112267605