welcome to HISEA

call us: +86-17359596335

news

Focusing on the development and marketing of Security and telecom products.

company news Industry News

Cell phone jammer hold back you are asking phone from surveillance

source:Industry News release time:2021-06-24 Article author:sznbone Popular:Prison Jamming system

Make sure that there is no surveillance in the room before the discussion and that it is no longer limited to spy movies. The great success of connected property gives everyone the opportunity to worry about overhearing private conversations. A Bloomberg investigation raised legitimate concerns and found that spokespersons using the Amazon Alexa virtual assistant were accidentally heard by company employees.


Today, there are mobile phone jammers that work on the same principle, but are only effective for mobile phone bands, because ultrasound tends to move in one direction. The speakers on the wristband are subject to the same limitation: for this reason, researchers placed them around so that they could transmit radio waves 360 degrees. For the same reason, they designed a cell phone jammer that can be worn on the wrist. Because we often speak with our hands, the ultrasound will spread more, maximizing its effectiveness.


This would not happen if they were equipped with cell phone signal jamming devices designed by researchers at the University of Chicago. It is obscured by ultrasonic speakers, projecting a sound wave field around the wearer, which people cannot hear but destroys nearby microphones. It is reported that Amazon employees did not record the conversation but heard white noise.

Read recommendations:

Waterproof High Power Anti UAV Drone Jammer

8 bands WiFi Cell phone Jammer

Shield

Are cell phone jammers legal in schools?

Jammers have a great impact on public safety

Rise of DeepSeek sheds light on Chinese AI path

Previous:Army and prisons use cell phone jammer Back to list Next:Signal jammer is a double-edged sword

Popular recommended products

Related Information

Four matters needing attention in the use of mobile phone jammers for signal shielding in conference

2020-09-12

Working principle of wireless mobile phone signal shielding device

2020-10-26

phone signal shielding cabinet!Jammers Solution

2021-10-25

Signal jammer, help college entrance examination, maintain fairness

2020-11-28

Teach you how to prevent malicious recording?

2021-08-25

What should be paid attention to in the installation and use of mobile phone signal shielding equipm

2020-10-26

The current status and misunderstandings of the machine signal jammer

2021-04-09

What is a cell phone jammer used for?

2021-08-24

Rise of DeepSeek sheds light on Chinese AI path

2025-02-12

The performance of mobile jams cellphones is lower than that of mobile towers

2021-11-22

Who needs a handheld Wifi Bluetooth 4G mobile phone signal jammer?

2020-11-11

How do you get a replacement shielded antenna?

2020-11-26

WiFi jammer to get rid of wireless hackers

2021-12-17

Introduce in detail what are the factors that interfere with the effect of the prison signal jammer?

2021-06-01

Why do we Need Camera Detectors

2021-04-27

2021 The latest anti-recording jammer is here, which effectively guarantees the safety of your conve

2021-10-11

Vehicle GPS signal jammer

2020-12-28

Portable recording blocker to prevent recording by voice recorder!

2021-04-08

The powerful multifunctional signal jammer is here waiting for you

2020-11-10

Mobile phone jammer maintains a good environment for important meetings

2020-11-09

Interfering products

SSA3000X Plus Series Desktop Style Spectrum Analyzers

2025-04-09

HSA-Q1 Handheld RF Spectrum Analyser up to 13.44 GHz

2025-04-09

Protek A734 100kHz-4.4GHz Handheld Spectrum Analyser

2025-04-09

Low-altitude defense drone portable equipment

2023-11-20

Mobile Phone Cellular Signal Booster GSM PCS Network Repeater for Garage Basement Signal Repeat

2023-11-09

2W Mobile Phone Signal Repeater 1800 2100 2600 MHz Tri-Band 33dBm Network Booster

2023-11-09

3G Signal Repeater Mobile Phone Signal Booster

2023-11-09

Portable Signal Jammer Full Band 21 Channels 2g 3G 4G 5g Mobile Phone Network Lojack Walky Talky Signal Jammer

2023-11-01

Professional all-round 360-degree recording jammer air purifier type anti-recording equipment

2023-11-01

Anti Spy Remote Control Portable Audio Voice Recording Jammer up to 2m white noise to Privacy Protection

2023-11-01

Recording blocker protect your voice information security,air purifier type anti-recording equipment

2023-10-31

2000m Detection Handheld Drone (UAS) Detection Warning Instrument Detector Dji, Autel and Fpv Drones

2023-10-27

Handheld Drone/Uavs Detecter for Detecting Dji/Autel/ Fpv Drones up to 2km

2023-10-25

with 2km Drone Controlled Signals WiFi Drone Signal Jammer GSM 900MHz WiFi 2.4GHz 5.8GHz Anti Drone System

2023-10-25

Unique Handheld 28 Bands 27 Antennas Wi-Fi6e FM Radio GSM 3G 4G 5g Mobile Phone Jammer

2023-10-23

Handheld 24 Antennas 5g Cellphone Signal Jammer with Nylon Cover

2023-10-23

Convoy 12 bands RCIED Bomb Jammer

2023-10-23

Vehicle Mounted Drone Detection Jamming Integrated Uav Detection, Positioning, and Countermeasures Blocking Units

2023-10-17

Portable Drone Detector aeroscope mobile works offline or online can find controller pilot position detection device up to 10km

2023-10-05

Vehicle Use-Signal jammer detector for uniform services

2023-09-20

Anti-Theft Jammer Detector for Local Command Center

2023-09-20

Portable Cellphone Jamming Detector

2023-09-19

M8000 RF Signal Detector Anti Spy Tracker Wifi Camera GSM Audio Bug Sweeper

2023-09-18

8km Ku Band Microwave Alarm Security System Ground Surveillance Monitor/Detector/Sensor/Radar

2023-07-31

Full Band Drone Jamming and Navigation Spoofing

2023-07-31

8kms 300MHz~6GHz RF Uav All Frequency Detection Direction Finding Equipment

2023-07-31

1.2G 100W anti drone module

2023-07-21

1.2G 50W anti drone module

2023-07-21

1.2G 30W anti drone module

2023-07-21

1.2G 10W/20W anti drone module

2023-07-21

Start a conversation to know more about what we have for you…

Get in touch

skype

whatsup

WeChat

top