welcome to HISEA
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:
8 Bands Wireless Signal Jammer
Anti-Drone Technology: Essential for Future Warfare
European telecom giants urge swift action on 6 GHz band to secure 6G future
Popular recommended products
Portable HS-V8J High-Power DDS Jammer
2020-09-14Portable Handheld RF Signal Jammer, Car Lock Remote Control Blocker, 10W Jam Up To 100m
2022-01-134G/5G Signal Jammer (14 bands)
2020-11-10Waterproof Portable 360 Degree Anti UAV Drone Jammer
2020-09-24High Power Handheld Signal Jammer HS-P8J
2020-09-15Related Information
GSM frequency jammer blocks multiple networks simultaneously
2021-07-19Jammers have powerful power and task processing capabilities
2021-09-28China home to 4 million 5G base stations
2024-09-26In addition to price, what other factors should be considered when buying a signal jammer?
2020-09-11Jammer blocks and interrupts the radio link
2021-07-20Drone hovering outside midtown Toronto condo raises privacy concerns
2023-09-21Mini GPS Signal jammer!Mini GPS Jammer
2020-10-27Telecom operators on average installing 2,500 base stations per week for 5G.
2022-12-23Portable recording blocker to prevent recording by the voice recorder!
2021-08-17Only factory direct sales can guarantee the high cost performance of the test signal jammer
2020-11-28Is the jammer waterproof?
2021-07-31Cell phone jammer principle
2020-11-30Protect Voice Security-Recording Jammer
2020-12-14What frequency can we jam with cell phone jammers？
2021-09-17The influence of magnetic field strength on test signal shield
2020-11-27Drone on drone war with jammers
2021-07-26Mobile phone signal jammer solution for oil depot
2020-11-05Precautions for choosing mobile phone jammer in conference room!Meeting room jammer
2021-09-17What is a recording blocker?Meeting room jammer devices
2021-09-30Russian college entrance examination also uses mobile phone signal shielding equipment to prevent ch
2021-08-05Interfering products
SSA3000X Plus Series Desktop Style Spectrum Analyzers
2025-04-09HSA-Q1 Handheld RF Spectrum Analyser up to 13.44 GHz
2025-04-09Protek A734 100kHz-4.4GHz Handheld Spectrum Analyser
2025-04-09Low-altitude defense drone portable equipment
2023-11-20Mobile Phone Cellular Signal Booster GSM PCS Network Repeater for Garage Basement Signal Repeat
2023-11-092W Mobile Phone Signal Repeater 1800 2100 2600 MHz Tri-Band 33dBm Network Booster
2023-11-093G Signal Repeater Mobile Phone Signal Booster
2023-11-09Portable Signal Jammer Full Band 21 Channels 2g 3G 4G 5g Mobile Phone Network Lojack Walky Talky Signal Jammer
2023-11-01Professional all-round 360-degree recording jammer air purifier type anti-recording equipment
2023-11-01Anti Spy Remote Control Portable Audio Voice Recording Jammer up to 2m white noise to Privacy Protection
2023-11-01Recording blocker protect your voice information security,air purifier type anti-recording equipment
2023-10-312000m Detection Handheld Drone (UAS) Detection Warning Instrument Detector Dji, Autel and Fpv Drones
2023-10-27Handheld Drone/Uavs Detecter for Detecting Dji/Autel/ Fpv Drones up to 2km
2023-10-25with 2km Drone Controlled Signals WiFi Drone Signal Jammer GSM 900MHz WiFi 2.4GHz 5.8GHz Anti Drone System
2023-10-25Unique Handheld 28 Bands 27 Antennas Wi-Fi6e FM Radio GSM 3G 4G 5g Mobile Phone Jammer
2023-10-23Handheld 24 Antennas 5g Cellphone Signal Jammer with Nylon Cover
2023-10-23Convoy 12 bands RCIED Bomb Jammer
2023-10-23Vehicle Mounted Drone Detection Jamming Integrated Uav Detection, Positioning, and Countermeasures Blocking Units
2023-10-17Portable Drone Detector aeroscope mobile works offline or online can find controller pilot position detection device up to 10km
2023-10-05Vehicle Use-Signal jammer detector for uniform services
2023-09-20Anti-Theft Jammer Detector for Local Command Center
2023-09-20Portable Cellphone Jamming Detector
2023-09-19M8000 RF Signal Detector Anti Spy Tracker Wifi Camera GSM Audio Bug Sweeper
2023-09-188km Ku Band Microwave Alarm Security System Ground Surveillance Monitor/Detector/Sensor/Radar
2023-07-31Full Band Drone Jamming and Navigation Spoofing
2023-07-318kms 300MHz~6GHz RF Uav All Frequency Detection Direction Finding Equipment
2023-07-311.2G 100W module
2023-07-211.2G 50W Jammer Module
2023-07-211.2G 30W anti drone module
2023-07-211.2G 10W/20W anti drone module
2023-07-21Start a conversation to know more about what we have for you…
Get in touchEnter your email for exclusive offers and information on new upcoming products.
product
solution
about us
service
news
