Reviews Low frequency Counter

Galaxy DX-939 Backlit 40ch Mobile CB Radio with TalkBack & Roger Beep

  • Star Lite faceplate makes all lettering glow in the dark.
  • Large, easy-to-read meter with scales for power output, modulation, SWR and incoming signal.
  • Five-digit frequency counter and two-digit channel display using large blue LEDs , variable power output control, variable talkback circuit with on/off switch.
  • Automatic SWR circuit with an SWR alert LED, Roger Beep circuit with on/off switch.
  • Variable dimmer control, frequency display on/off switch, 3-position tone switch for receive.
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Powered Subwoofer, BESTISAN Home Audio Bluetooth Subwoofer, Deep Base, Built-in Amplifier Wireless Home Theater Subwoofer for TV, Soundbar, Optical/RCA/Bluetooth (6.5 Inch, Black)

  • CONVENIENT, LED DISPLAY DESIGN- round corner design can prevent bruising and perfectly integrate with your room. led displays in different colors shows mode switching..
  • WIRELESS& WIRED SEAMLESS STREAMING- Included RCA, optical and Bluetooth allow Bestisan powered subwoofer to blend the subwoofer’s low-frequency tones with other speakers, soundbar, smart phone, tv, laptop, tablet, etc..
  • LOW RESONANCE CABINET & BLUETOOTH 5.0-The latest Bluetooth 5.0 chip and compact design effectively reduces resonance interference and unwanted noises, so all you can hear is the cleanest and purest sound..
  • 6.5″ HOME THEATER POWERED SUBWOOFER- The 6.5″powered subwoofer features continuously variable 60-250hz crossover and 40-250 hz frequency response, designed for audio and home theater performance..
  • ADJUSTABLE VOLUME AND LOW-FREQUENCY- Independent volume and low-frequency bandwidth adjustment knob located on the back panel of the subwoofer allows you to adjust the volume and low-frequency bandwidth according to your preference..
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Jennifer Taylor Home Moderne 27\ Counter Height Bar Stool (Set of 2) Steel Gray

  • Set of 2 counter stools included for the perfect bar stool pairing.
  • Low back seat support and recessed arms offers a supportive seating experience while preserving a low profile look.
  • Brass-plated footrest provides comfortable seating and resists scuffs and scratches.
  • Hand-applied iron nailhead accents are finished in antique brass to provide classic chic.
  • Available in counter height to use with a counter table or counter kitchen island.
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Hisonic HM800 Dynamic Microphone

  • Low impedance element with extremely light weight diaphragm for excellent transient response and wide frequency range with exceptional detail &....
  • Twin AlNiCo magnet elements precisely constructed in a housing having wide dynamic range for smoothly reproducing clear & distortion-free sound.
  • Low-frequency rolloff & extended high-frequency response capture the original vocal sound with extraordinary clarity..
  • Rugged and durable Nickel finished Zinc casing..
  • Tight hypercardioid pattern stays uniform & symmetrical throughout entire frequency range to minimize feedback..
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Sleep Aid Device, Hand-held Nighttime Sleep Aid Device, Micro-Current Intelligent Relieve Anxiety Depression Fast Sleep Instrument, Natural Sleep Aid Device, Physical Sleep Aids

  • ...rivation and insomnia fall asleep as soon as possible. At the same time, it has the function of relieving migraines, relieving anxiety and releasing stress.This sleep aids has Light weight,small size and easy portability,So it can be used in the office, home and business trips. USB charging is very convenient..
  • [Low Frequency Microcurrent ]Low-frequency pulse current microampere level, does not hurt the body's function, still helps sleep after discontinuing use, non-drug, no dependence, through the palm of the hand to pass current, avoiding the risk of direct stimulation of the brain current..
  • [Two Frequency Modes] Our sleep aids have two modes. Low frequency mode (sleep mode): low frequency for soothing and relieving anxiety frequency, held in the palm of your Left hand can accelerate to let you sleep peacefully. High frequency mode (excitement mode): high frequency for excitement and inspiration frequency, held in the palm of your Right hand can make you excited and energetic, work and study with more passion..
  • [Important Notes&Easy to operate] Our sleep aid automatically stops after 15 minutes of work,so you don't have to worry about the device being in working condition all the time.To make it work again please turn it off and on again.As each perso....
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Inside the Headset with the AFCA

  • World class performance – HD voice combined with world-class speakers allow the Jabra Evolve Wireless Headset to deliver outstanding audio with crystal-clear clarity for your calls and music, whether you need to collaborate or concentrate during your day..
  • Increase focus – Easily switch on active noise cancellation to counter ambient noise and virtually eliminate low-frequency sounds, like the hum of air conditioning. Plus, an integrated busy light acts as a do-not-disturb sign to reduce interruptions..
  • All-day battery – Get up to 18 hours of talk time, 17 hours of music time, or up to 15 days of standby time so this call center headset keeps up with your busy day. A USB cord is included, allowing for use while charging. Plus, the comfortable design allows for all-day wear..
  • Superior connectivity – Get the freedom to move with dual Bluetooth connectivity to up to two devices, and a range of 100ft/30m from your connected device. A Jabra Link 370 USB adapter is included to enhance connectivity..
  • Compatibility – The Jabra Evolve 75 microphone headset works with all leading Unified Communication platforms, and is optimized for Skype for Business, Cisco, and more..
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(2) Mackie MR524 5 Powered Studio Monitors+10\ Active Sub+Mic+Mount+Stands+Pads

  • ...ped Speaker. Designed for superior mix translation and accuracy for professional results in any studio. Equipped with Mackies proven logarithmic waveguide design. Ultra-wide dispersion for enhanced stereo imaging and listening sweet spot. Precise acoustic alignment offers incredibly balanced sound across the entire frequency spectrum. 1 silk dome tweeter provides fast transient response for detailed high end and vocal clarity.
  • 5 polypropylene woofer delivers responsive, dynamic low frequency response. 50 watts of bi-amplified Class A/B amplification. Frequency response: 45 Hz 20 kHz. Optimize MR monitors for your mixing environment. Adjustable acoustic space filters maintain flat response in typical placement configurations. HF filter applies boost or cut to compensate for particularly dull or bright sounding rooms. Professional all-wood cabinet design built to last and look great in any studio.
  • Custom designed internal bracing adds stiffness for reduced distortion and enhanced low frequency response. Flexible inputs for simple connection to almost any audio source. Acoustically optimized with sound-tightening acoustic absorption material. Add the companion MRS10 studio subwoofer for powerful, deep low frequency extension perfect for electronic music, ....
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YoBuyBuy 5800W DC12V Electric Fish Shocker Stunner Inverter Electro High Power Fisher Tilapia Fishing Machine

  • 1. Protection: it has short-circuit protection. reverse polarity protection and waterproof protection..
  • 2. High power and low energy consumption: with high power and low energy consumption and excellent results. the use of frequency conversation electronic technology..
  • 3. Full current limiting protection: intelligent pulse. high frequency or low frequency regulation. can be adjusted according to the need to adjust the frequency of electric field size..
  • 4. Easy to carry: with suitable size and suitable weight. this inverter is easy and convenient to use..
  • 5. Material: this inverter is made of good material. which is durable and useful..
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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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