Device Block 3g 4g Wifi Signal Blocker Gsm 2g 3g 4g 5g Wifi 2.4g Gps For School Cinema Private Space Anti-monitoring - Portable Gps Tracker

Features

1. Effectively prevent being tracked by GPS satellite positioning, protect your whereabouts privacy and information confidentiality

2. At the same time effectively shield CDMA/GSM/DCS/PHS/3G/4G and other mobile phone signals

3. Can shield 2.4GWIFI and wireless candid transmission signals

4. Small size, high power, light weight, large coverage, easy to carry

Applicable places

1. Vehicles with GPS positioning or navigation installed

2. Party and government or key state secret places

3. Individuals who need to prevent tracking and candid photography

After the activation is completed, the mobile phones within the range are blocked within 35 seconds.

Edit this paragraph basic performance:

Transmission frequency range: 860-960MHZ 1.800-1.990GHZ

Transmitting power: 1W±200mA

Ambient temperature: -20—+55℃

Relative humidity: 30-95%

Working frequency band: CDMA800, GSM900, DCS1800, PCS1900, PHS.

Control range: about 1-20 meters.

In the radius of 1-20 meters of using this product, the GPS satellite signal and the wireless candid shooting transmission signal are effectively truncated, thereby forming an effective protection area, so that your whereabouts are not worried about being tracked and candidly photographed.