ReviewsFrequency Adjusting

PC Interface Controller

  • 【One-year after-sale warranty】The PWM to voltage module converts PWM digital signals to 0 to 10V analog signals. It can be used to switch the signal interface of PLC or other industrial control board. Adjust the output voltage by adjusting the PWM duty cycle. The module is small in size and easy to apply in different places.003cbr003e.
  • Using MCU embedded technology. Easy to operate, can be fine-tuned by potentiometer.003cbr003e.
  • Select the PWM signal input level range by short circuit. The module is small, easy to carry and easy to use.003cbr003e.
  • (current greater than 100mA)，PWM signal receiving frequency range: 1KHZ-3KHZ.
  • When power on for the first time, it is best to do a calibration and debugging: find a signal with a 50% duty cycle and connect it to PWM and GND. Jumper caps set the corresponding voltage range. When the frequency is 1KHZ-3KHZ, use a multimeter to measure the two ports of VOUT and GND. At this time, the meter displays about 5V. Adjust the potentiometer on the board so that the multimeter displays 5.00v.003cbr003e.
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Samson Technologies SR850 Semi Open-Back Studio Reference Headphones, Black

  • Professional studio Reference semi-open headphones designed for tracking, mixing, mastering and playback..
  • Proprietary large 50mm drivers with rare earth magnets deliver an extended frequency response and great dynamic range.
  • Circumaural, over-ear, design with velour cushioning provides outstanding comfort for long listening sessions.
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AKG Pro Audio K72 Over-Ear Closed-Back Studio Headphones Matte Black

  • Precisely balanced response provides reference-monitor accuracy.
  • Professional drivers 40mm drivers for extended 16Hz - 20kHz frequency response.
  • Over-ear design and lightweight construction for exceptional comfort.
  • Self-adjusting headband ensures perfect fit.
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Rotekt 2 Types Chiropractic Adjusting Tool, Electric Spine Adjuster Adjusting Massager Spinal Massage Gun Correction Device Four Massage Heads Replacement Tips for Back Neck (01)

  • ...f the musculoskeletal joints of the spine and extremities, or for soft-tissue musculosketletal mobilization by a licensed health care personal only， you can rest assured that we have quality assurance.
  • Quality-Working Ratio: This chiropractic adjusting tool built-in high-frequency fan can cool the machine to extend the service life. Therapy Spine Massager, based on the physical pulse principle and the massage method of the human hands, so this is the same comfort as the hand press, which will free your hands, let you have a good time.
  • Easy To Use: This chiropractor activator tool is lightweight, safe, durable, portable and sturdy, home treatment for all. Electric Spine Chiropractor. 15 minutes per day reduces the tension on your neck and can be more effective than a whole chiropractic sessionMechanical therapy, easy treatment, so you can buy it for your family,older people.
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Fencia Powerful Lab Oscillator Square Orbital Shaker 110V

  • The piston outside the casing contains special grease, which vibrates together with the piston and runs smoothly and quietly..
  • Commonly used for vibrating table, filter screen, silo emptying, bulk material washing and compaction..
  • Made of high‑quality materials, wear‑resistant and durable, meeting the needs of various work scenarios..
  • There are standard 1/4in threaded holes on the outside to facilitate smoother exhaust of the vibrator..
  • The pneumatic vibrator can control the amplitude and frequency by adjusting the voltage..
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Pneumatic Ball Vibrator, Vibrator for Vibrating Table(K25)

  • The piston outside the casing contains special grease, which vibrates together with the piston and runs smoothly and quietly..
  • Commonly used for vibrating table, filter screen, silo emptying, bulk material washing and compaction..
  • Made of high‑quality materials, wear‑resistant and durable, meeting the needs of various work scenarios..
  • There are standard 1/4in threaded holes on the outside to facilitate smoother exhaust of the vibrator..
  • The pneumatic vibrator can control the amplitude and frequency by adjusting the voltage..
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Pneumatic Ball Vibrator, Vibrator for Vibrating Table(K20)

  • The piston outside the casing contains special grease, which vibrates together with the piston and runs smoothly and quietly..
  • The pneumatic vibrator can control the amplitude and frequency by adjusting the voltage..
  • There are standard 1/4in threaded holes on the outside to facilitate smoother exhaust of the vibrator..
  • Made of high‑quality materials, wear‑resistant and durable, meeting the needs of various work scenarios..
  • Commonly used for vibrating table, filter screen, silo emptying, bulk material washing and compaction..
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FEDAI CCA CA2 in-Ear Earphones,HiFi Stereoin Ear Monitors IEM Wired Headphones/Earbuds/Headsets Hybrid Banlance Armature with Dynamic in-Ear Earphone HiFi Headset (Crystal Nomic)

  • 【10mm composite magnetic dynamic coil】CCA CA2 earphone is Equipped with one new 10mm composite magnetic dynamic coil, the low-frequency dive can reach 10hz, the mid-low frequency is full and delicate, and the strength interprets popular vocals, giving them clear details. Rich texture and full of powerful bass. Bring you a new kind of auditory sense..
  • 【Comfortable and Clear Sound】Tuning focuses on the popular and ACG directions. The strong magnetic force enhances the low frequency density, which is more suitable for the requirements of electronic music and heavy instrumental music. The rapidly improved transient response can meet the pursuit of vocal and classical music for the details of the mid-frequency..
  • 【Simple Stylish Resin Cavity Design and Removable Cable】 CCA CA2 earphones is the combination of resin and the wide range of color options display a modern and eye-catching ,fasionable earphones. Bright streamer, adds luster texture,full of beauty.Suitable for stage, outing and other scenes..
  • 【Comfortable to Wear】Ergonomic design can effective reduce noise and soft fit the auricle, which can make you comfortable and stable to wear. and effectively more reduce external noise interference after being worn tightly, then you can just enjo....
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DragonflyDreams Dog Whistle, 4 Pack Dog Whistle to Stop Barking, Recall Training, Professional Ultrasonic Dog Training Whistle with Lanyards, Silent Dog Whistle, Bark Control Whistle, Black and White

  • 【High Pitch Dog Whistle】The silent dog whistle to stop barking features ultrasonic frequency, is extremely distinct, silent to others, and the high frequency cannot be easily replicated. Simply turn the screw inward or outward to adjust the frequency for easy training of your dog/puppy..
  • 【Simple and Versatile】You can easily train your dog's unlimited commands by adjusting different ultrasonic frequencies with our dog training whistle. For example: "don't move - two short sounds", "sit down- one long and one short", "come - two long sounds", which can help you communicate better with your dog..
  • 【Professional and Reliable】Our dog whistle to stop barking neighbors dog is made of quality nickel plated brass, with plastic shell, light in weight, compact in size. What's more, the ultrasonic waves emitted by the dog whistle will not damage your dog's hearing during training and will not cause any health problems for your dog..
  • 【Anti-lost Dog Whistle】These ultrasonic dog whistles are not only a great tool for training and learning basic skills, but they also make it easy for you to quic....
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3M Littmann Cardiology IV Stethoscope, Standard-Finish Chestpiece, Rose Pink Tube, 27 inch, 6159

  • Purchase a rose pink 3M Littmann stethoscope and $5 of the proceeds will be contributed to the American Cancer Society to help finish the fight against breast Cancer.
  • Outstanding acoustics with better audibility of high-frequency sounds (adult side, firm pressure). tunable diaphragm: hear high or low frequency sounds by slightly adjusting pressure on the chest piece.
  • Dual-lumen tubing: two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
  • Next-generation tubing lasts longer and resists stains. Not Made with natural rubber latex or phthalate plasticizers.
  • Headset is easily adjusted for individual fit and comfort. Angled ear tubes align with ear canalsDescriptionThe 3M Littmann Cardiology IV Stethoscope is designed for clinicians who require outstanding acoustic performance combined with exceptional versatility. Its innovative design provides a single-piece tunable diaphragm on each side of the chestpiece. The colors shown online are approximations. We have made every effort to show the best possible match to the color of the actual product. However, some variation is expected, due to differences in both lighting and monitor calibration..
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ECS WordSmith Noise Reduction in Ear USB Transcription Headset

  • SUPERB AUDIO QUALITY – Improve accuracy by using this headset that comes with built-in premium soundcard.
  • VOLUME CONTROL – Type more efficiently by adjusting the volume in your headset for a more stunning volume and clarity..
  • COMFORTABLE - Lightweight silicone ear buds design for greater comfort during those long hours of transcribing..
  • NO DISTRACTIONS – revolutionary technology that matches the frequency response of the spoken word, dictations that makes that sound louder and clearer..
  • COMPATIBILITY – This headset is designed to be used with your transcription audio software programs with ease..
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