Reviews High Frequency Devices

PANASONIC Bluetooth Earbud Headphones with Microphone, Call/Volume Controller and Quick Charge Function - RP-HJE120B-W - in-Ear Headphones (White)

  • Bluetooth earbud headphones - syncs with all Bluetooth devices.
  • enjoy 4 hours and 20 minutes of continuous use on full charge or 1 hour of playback with 20 minute quick charge.
  • Microphone & Call controller - with an integrated microphone and call remote, these headphones are compatible with Apple (iPhone/ iPod/ iPad), Android and Blackberry Audio and smartphone devices.
  • Ergo fit earbud design - ergonomic design for perfect fit. Ultra-soft Ergo Fit in-ear earbud headphones conform Instantly to your ears (S/M/L ear pads included).
  • In-ear stereo Audio - large, high-quality 9mm neodymium drivers and a wide frequency response ensure a level of deep, dynamic bass and crisp, high-tone trebles.
  • Extended headphone cord - long, 3.6-Ft headphone cord threads comfortably through clothing and bags making it easy to connect.
  • Frequency Response - 15 - 22,000 Hz and Impedance - 16 ohms.
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Wireless Microphone Headset UHF Wireless Headset Mic System Headset Mic and Handheld Mic 2 in 1 165ft Range 1/4'' and 1/8'' Plug for iPhone Smartphone Speaker Amplifier Laptop Desktop Camera

  • ...gn Incorporating a UHF transmitter, this cordless microphone ensures a stable and strong signal transmission with no delays or jamming. This microphone headset is stable,comfortable and high-sensitive:165 feet (50m) transmission distance,Signal stability ,No delay ,No radiation ,Anti-howling ,Anti-jamming ,Constant frequency ,Clearer sound quality ,Handheld & headset 2 in 1 ,TRS/TRRS Converters( 6.35 to 3.5mm port).
  • Widely Application This wireless USB microphone can be used for class, Yoga gym, speech, church and tour guiding.For below Android 10 version phone, must use a third-party APP software for audio and video recording.iOS devices have not such issue.For iPhone 6/ Android Cell Phones and laptop with 3.5mm Headphone Port,use the receiver directly.For DSLR Camera,iPad,iPhone7/8/9/X/XR/11, USB-C Android phones,use original Usb-C To 3.5mm/Lightning to 3.5mm Cable (excluding), Otherwise, No Sound..
  • Easy to Use Turn on the transmitter first and then long press " +" key for 10 seconds, the LED screen will display"—" cycle flashing. Then turn on the receiver, the blue indicator flashing, indicating the receiver enters the matching status, wait a few seconds until the indicator stop flashing, paired successfully.When working with computer,you must cho....
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OBVIS IR Infrared Remote Control Extender Repeater Kit Cable Hidden IR System Four Emitters One Reciever 4 Eyes 10 Feet

  • Infrared Remote Control Repeater Kit enables you to hide devices such as Xbox One, amplifer, Home Theatre, cable box and other IR controlled devices inside cabinet even behind the wall.
  • Compatible with devices in 34 - 60khz IR frequency, that is the most common source of remote controlled devices.
  • Easy to install: Simply connect the receiver and emitters with 3.5mm plug and jack given, connect USB for power supply and place the receiver and emitters where appropriate to make it works.
  • High sensitivity, remote control signal receive in real-time reacts to the emitters.
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OBVIS IR Infrared Remote Control Extender Repeater Kit Cable Hidden IR System Two Emitters One Reciever 2 Eyes 10 Feet

  • Infrared Remote Control Repeater Kit enables you to hide devices such as Xbox One, amplifer, Home Theatre, cable box and other IR controlled devices inside cabinet even behind the wall.
  • Compatible with devices in 34 - 60khz IR frequency, that is the most common source of remote controlled devices.
  • Easy to install: Simply connect the receiver and emitters with 3.5mm plug and jack given, connect USB for power supply and place the receiver and emitters where appropriate to make it works.
  • High sensitivity, remote control signal receive in real-time reacts to the emitters.
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GE Digital 2-Way Coaxial Cable Splitter, 2.5 GHz 5-2500 MHz, RG6 Compatible, Works with HD TV, Satellite, High Speed Internet, Amplifier, Antenna, Gold Plated Connectors, Corrosion Resistant, 33526

  • Multi Purpose – This Digital Coax Splitter Is Designed For Use With Hd Tv Signals, Satellite Tv, And High Speed Internet Modems As Well As Cable Tv, Amplified Antennas, Amplifiers, And Other Coaxial Devices..
  • Frequency Range – Distributes A Digital Signal Of 2.5 Ghz (5-2500 Mhz) Frequency Range.
  • 2 Outputs – Splits A Single Digital Signal To Up To 2 Devices, Balanced, And With Power Pass Through On All Ports..
  • Gold Plated Connectors – Allows For Optimal Connectivity, Corrosion Resistance, And Compatible With Rg59 And Rg6 Coax Cable..
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Anti Spy Bug Detector | Professional RF Signal Detector | High Sensitive Spy Bug Sweeper | Search for GPS Tracker, Mobile Phones, Wi-Fi, 3G, 4G, GSM | i4 Technology BH-03 Expert | FCC and ICES

  • ...l lets you quickly locate hidden devices while telling you what kind of spy technology they are. Super fast processor gives you rapid results covering a much wider range of modern bugs. Lets you outsmart thieves, spies, pranking friends, suspicious spouse, nosy boss and many more..
  • DETECTS RF SIGNALS with a built-in Frequency Meter. This is the tell tale sign of a listening or camera device set to eavesdrop on your activities. Quickly locates these devices revealing their frequency band. Now you can enjoy worry-free privacy without the threat of detection..
  • INSTANTLY RECOGNIZES MOST FREQUENCY BANDS used by nearly all spy devices. Detects GPRS, EDGE, 3G/4G, DECT, DECT BASE, BLUETOOTH, WLAN, GPS, Wi-Fi. As soon as the device sends a signal to the spy, BH-03 Expert spots it. Great for scanning your hotel room, office, home, meeting room and vehicle. Lets you filter out unnessary (known) positive signals. Don’t leave home without it!.
  • DETECTS WIDER RANGE OF BUGS at 70dB sensitivity including those with very weak signals and those with especially high power. This gives you access to a much wider range of bugs than most other anti-spy devices. Detection range is up to 16 feet in all directions. When set to Security Mode, it warns you if a spy device appears....
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EXMAX® ATG-100T 195-230MHz Wireless Tour Guide System Interpreter Equipment Translator Microphone for Church Translation headsets Simultaneous Interpreting Equipment (1 Transmitter 8 Receivers)

  • EXMAX wireless audio transmission system could transmit voice of who speaking to microphone of transmitter to the ones wearing earphone of receivers,transmission distance is about 50-60 meters (164-197ft).99 frequency channels on 195MHz-230MHz means it has 99 selected IDs allowing at least 40 groups to work simultaneously.Widely used for field trip,tour guides,exhibition live explanation, sermon interpretation,silent conferences,church translation,audio visual laboratory,events for church,hajj...
  • Transmitter weighs 56g and receiver weighs 46g,Small and light for carry or carriage.High S/N Ratio(≥90dB) ensures clear voice transmission. Long-Lasting Power,both transmitter and receivers are built-in 900mAh lithium upgraded battery to guarantee more than 18 hours working.One transmitter could pair up countless receivers so long as on the same frequency channel.Transmitter has 3.5mm input jack, it supports AUX( such as MP3, Smartphone,MP4,CD ) and MIC input..
  • The wire of microphone and earphone has antenna function, please do unfold the wire of the microphone and earphone to enhance the voice signal transmission. On each group, transmitter and receivers should be ....
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MC14046BCP Phase Lock Loop (PLL) IC 1.9MHz 1 16-DIP (0.300\

  • ...gnal-input amplifier and a common comparator input..
  • Very low power consumption: 70 µW (typ.) at VCO, VCO inhibit control for ON-OFF keying and ultra-low standby power consumption fo = 10 kHz, VDD = 5 V, Source-follower output of VCO control input (Demod. output), 100% tested for quiescent current at 20 V.
  • Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k, High VCO linearity: 003c1% (typ.) at VDD = 10 V, 5-V, 10-V, and 15-V parametric ratings.
  • Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V, Choice of two phase comparators: Exclusive-OR network (I) Edge-controlled memory network with phase-pulse output for lock indication (II), Zener diode to assist supply regulation, Standardized, symmetrical output characteristics, Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices".
  • A Versatile Building Block for Micropower Digital and Analog Applications, Example Applications: FM demodulator and modulator, Frequency synthesis and multiplication, Frequency discriminator, Data synchronization, Voltage-to-frequency conversion, Tone decoding, FSK - Modems, Signal conditioning,.
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Anysecu SF-103 A-SF103 Portable Frequency Counter 2MHz - 2.8GHz for Two Way Radio Upgrade Version of SF401

  • ...ength reflection optical observation and RF signal detection, make the invisible cameras visible.
  • RF SIGNAL DETECTION -- Wireless surveillance cameras, tracking devices and 2G, 3G, 4G SIM card bugs, GSM listening devices, magnetic locator, bugs can be detected via RF radio frequency antenna. Users can adjust the signal sensitivity by knob according to actual needs. The threshold is adjustable, frequency detection range is large.
  • MAGNETIC SIGNAL DETECTION -- Can detect magnetic locators, hidden bugs and GPS trackers installed on convert place in your car with magnetic field probes. MAG mode must insert and tighten the magnetic probe, adjust the signal to the 4-6 grid balance point, the alarm sound will stop.
  • WIDE APPLICATIONS -- can be used to find hidden cameras and listener search in homes, offices, hotels, motels, bathrooms, locker rooms, business negotiations, confidential meetings, government agencies, and to find GPS tracker in car, or as a scanner for daily use to prevent sneak shots and monitor magnetic field signals. Stay vigilant for your partner, family, business, and provide privacy protection.
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