ReviewsAdjustable Frequency

PWM Pulse Frequency Generator, Icstation Signal Generator Module DC 3.3V-30V Function Generator 5-30mA 1-Channel 1Hz-150kHz PWM Pulse Frequency Duty Cycle Square Wave LCD Display

  • ⇝PWM Pulse Frequency module work voltage range is DC 3.3V-30V.
  • the frequency range is 1Hz-150kHz/1Hz-15kHz.
  • ⇝PWM frequency supports 2 modes:normal mode & accurate mode.Regular mode with 1% duty cycle steps.Precision mode with 0.1% duty cycle steps..
  • PWM output can set frequency & duty cycle separately.
  • duty cycle upper and lower bounds adjustable.
  • ⇝Square wave signal generator, generating square wave signal for experimental development, generating square wave signal that controls the motor driver, and generating adjustable pulses for MCU Dimmer.
  • ⇝There is no output voltage control. The output voltage is the same as the input voltage. That can be easily changed by adding a simple potentiometer..
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Ultrasonic Anti-Bark Dog Training Equipment and Barking Control Device, Electronic Clicker Trainer for Walking, Jogging, and Aggressive Behavior, Handheld and Portable, Black

  • Dog Bark Control and Dog Training - MODUS adjustable ultrasonic dog training device releases ultrasonic sound which is inaudible and safe to humans but can be heard by your dog and make it feel uncomfortable. This anti barking device is an effective way to train your dogs to stop bad behaviors other than barking, jumping on people or damaging your belongings by just pressing the buttons. Please note: the ultrasound can not go through the wall..
  • 3 Ultrasonic Settings to Reduce Immunity - MODUS dog barking deterrent device is designed with three ultrasonic adjustable modes, including 120db 25KHZ fixed frequency, 124db 25KHZ fixed frequency and 128db irregular frequency sound waves. With the gears up, the ultrasonic output power becomes stronger to avoid the incompatibility of dogs of different breeds and sizes. The irregular frequency prevent dog from being adapted to a single frequency..
  • LCD Screen Display and USB Rechargeable - HD LCD display makes it easy to see the current ultrasonic mode, functions, and remaining power clearly. Equipped with a large capacity of 750mAh rechargeable battery, this anti barking device can be charged via USB cable(included), and support a long daily-use time up to 30 days, saving you endless hassle and invest in batterie....
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Pyle Professional Wireless Handheld Microphone System - Dual UHF Band Wireless Handheld 2 MICS w/ 8 Selectable Frequency Channels Independent Volume Controls AF & RF Signal Indicators

  • WIRELESS MICROPHONE: Enjoy a cable-free environment & make it easy to own the stage without getting tangled up! The ultimate in freedom during vocal....
  • 2 DYNAMIC MICROPHONES: Wireless audio control for up to 2 MICS with simultaneous use each with adjustable independent volume controls. Sing, talk or....
  • UHF SIGNAL AUDIO: Wireless UHF signal audio transmission provides unsurpassed performance w/ operation up to 160 FT for clear, noise & distortion....
  • 8 FREQUENCY CHANNEL DESIGN: Choose from 8 different frequency channels each with adjustable independent volume controls providing broad frequency....
  • HIGH QUALITY PRODUCT: Battery operated wireless microphones are designed for extended use providing excellent audio quality with its omnidirectional....
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(2) JBL Pro JRX215 15″ 2000w PA/DJ Speakers+Powered 12-Channel Mixer+Stands

  • ...hm, Program Power Output:, …..1200w x 2 @ 4 Ohm, …..900w x 2 @ 8 Ohm, …..2400w x 1 @ 8 Ohm, Peak Power Output:, …..2400w x 2 @ 4 Ohm, …..1800w x 2 @ 8 Ohm, …..4800w x 1 @ 8 Ohm, 12 Channel mixer section: 6 mono channels, 3 stereo channels, 1 dedicated USB/SD input, Built-in Bluetooth playback.
  • Features:, Adjustable Height, Steel Construction, Black Color, Weight capacity: 132 LBS, Adjustable Height Range: 47.25-78.75 inches, Base spread: 15-40 inches, Tube Diameter: 1.5 – 1.37 inch, Leg Diameter: 1.37 inche, Includes (2) 20 foot 1/4″ to Speakon NL-4 speaker cables, Includes (1) Carry Bag.
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ART 351 EQ 31-Band 1/3 Octave Graphic Equalizer

  • The 351 is a single-channel, 31-band, 1/3-octave graphic equalizer with many features: constant Q circuitry with a 3% center frequency accuracy, 20mm center detent sliders, selectable boost/cut range of 6dB or 12dB, active balanced and unbalanced input and output connections, adjustable high-pass filter, adjustable low-pass filter, variable input level control, clip level indicators, ground lift switch, internal power supply, and selectable line voltage switch.
  • The ART 351 Single Channel 31-Band Equalizer features a rugged all-steel chassis that occupies a single 19" rackspace.
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Professional Wireless Microphone System - Dual UHF Band Wireless Handheld 2 MICS With 8 Selectable Frequency Channels Independent Volume Controls AF & RF Signal Indicators - Pyle PDWM3375

  • WIRELESS: Enjoy a cable-free environment & make it easy to own the stage without getting tangled up! The ultimate in freedom during vocal performances....
  • 2 MICROPHONES: Wireless audio control for up to 2 MICS with simultaneous use each with adjustable independent volume controls. Sing, talk or vocalize,....
  • UHF: Wireless UHF signal audio transmission provides unsurpassed performance with operation up to 160 FT for clear, noise & distortion free, crisp....
  • 8 FREQUENCY CHANNEL DESIGN: Choose from 8 different frequency channels each with adjustable independent volume controls providing broad frequency....
  • HIGH QUALITY: Battery operated wireless microphones are designed for extended use providing excellent audio quality with its omni-directional audio....
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YUCHENGTECH Ionizing Air Blower Static Eliminator Anti Static Fan HFAC ESD Ionizer Fan Anti Static Blower (110V)

  • 1.【High-frequency AC】◈ Frequency up to 68000Hz, with high ion density, and better effect of removing static electricity. (Traditional Low Frequency: 50 / 60Hz)..
  • 2.【Upgrade dual cleaning function】◈ With automatic cleaning and manual cleaning function, built-in cleaning brush, set cleaning time, can clean automatically.
  • needle seat can be disassembled freely, also can be cleaned manually, convenient for maintenance..
  • 3.【Fast to remove static】◈ Ionizing air blower adopts high frequency technology, with large air volume, widely air flow coverage area and high efficiency electrostatic removal..
  • 4.【Tungsten Alloy Ion Needle】◈ Compared with ion needles of other materials, tungsten alloy ion needles contain tungsten up to 99% and have good ion balance, quickly neutralize static electricity,the service life can reach 20000 hours..
  • 5.【Ionizing Air Blower】◈ Discharge Time: .
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ICQUANZX XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude

  • High resolution, can generate sine/triangle/square waveforms..
  • Frequency adjustment features coarse tuning and fine tuning..
  • Wide power supply range, use 9-12V external power or 9V battery(NOT Included)..
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2021 PowerTIG 325EXT 320amp DIGITAL AC/DC TIG Stick Pulse welder 220 Volt Inverter-Based AC DC

  • Lightweight and portable 208/220/240/ 1PH and 3PH unit.
  • Digital/Micro-controlled // 320A/ 20V @ 60% Duty Cycle/ 40º C.
  • AC Wave Forms: Advanced Square /Soft Square / Triangular / Sine.
  • DC Pulse Frequency: .1-500 Hz / Standard AC Pulse Frequency: .1-250Hz.
  • Hot Start Amps: 0-100% Stick : Adjustable Arc Force Control Stick Hot Start Typ:Adjustable Hot Start.
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Koss KPH14i Retro Side-Firing On-Head Headphones, in-Line Microphone, New Retro Look

  • Frequency Response - 10-25,000 Hz and Impedance - 250 ohms.
  • Dynamic element for extended frequency response.
  • Closed leatherette ear cushion for maximum isolation and deep bass.
  • Adjustable, vinyl-covered headband adapts to individual head size, Ultra durable for daily use.
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KOOBOOK 1Set 1Hz-50MHz Frequency Counter Meter Crystal Oscillator Digital Tester Meter DIY Kit 5-Digital LED Display

  • This is a PIC microcontroller based on the frequency meter, with a crystal measurement function and programmable addition and subtraction frequency settings..
  • Five digital display, easy and intuitive, all use of in-line components, the circuit is simple and easy to produce..
  • You need to solder and assemble by yourself, all the components are directly inserted, and the wire is printed correctly according to the PCB. After welding, the signal is input with the standard signal source, and the yellow adjustable capacitor is adjusted to make the display value equal to the signal frequency..
  • The power supply can use a USB to 3.5mm power cable, or you can directly input a 5-9V DC power supply at the - and + pads..
  • It can measure the frequency range from 1 Hz to 50 megahertz (1Hz-50MHz), can measure the oscillation frequency of most common crystal oscillators, and measure equipment such as radio transceivers..
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