ReviewsFrequency Control Products

FIFINE 20-Channel UHF Wireless Lavalier Lapel Microphone System with Bodypack Transmitter, Mini XLR Female Lapel Mic and Portable Receiver, Quarter Inch Output. Perfect for Live Performance-K037

...p to 50 feet. Perfect for live performance. ** Not compatible with phones, computers, cameras,and Apple products. Choose model USB lapel K031 if you need it for computers. Come to the model K037B lapel mics if you want to use with camera.**.
EASY-TO-READ LCD SCREEN.The screen on transmitter displays the transmitting frequency and remaining battery life, so no need to guess involved.The indicator of receiver will flash and turn green if low battery. You can know the microphone working status well during performance..
UNIDIRECTIONAL LAV MIC. Cardioid polar pattern rejects unwanted noise. Included windscreen also reduces plosives, wind and breath sounds. Clip it as close to under your chin as possible and with the top of the windscreen pointing up towards your mouth..
20 SELECTABLE CHANNELS. Easily change to a clean channel if use with other wireless microphone system or experience electronic interference. Good to be used for a mobile DJ. Work with speakers, mixers, amplifiers and sound boards that with 1/4'' interface to output the sound..
UNIQUE ID CODE. Each wireless microphone unit has been set a unique ID code that allows the use of several K037 wireless lapel microphone at the same time without worrying about cross connecting issue.Allows multiple wir....

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Snow Tire Chains, 6 Pack Universal Car Emergency Anti Slip Snow Chains, Winter Security Tire Chains Tire Width 195-225mm(7.6-8.9 inch) for Most Cars/SUV/Trucks (Medium)

Heavy duty Material: The snow chains are made of alloy manganese steel, which are welded together with 100-150KH High Frequency Current. Manganese alloy cross members provide superior, all-around traction performance and greater durability compared to conventional traction products, and not easy to rust..
Safe and Durable: The snow chains grid structure links the three chains together to increase the strength and anti-skid ability, especially to prevent side slip. The diamond-shaped cross chain provides smoother riding, better compatibility with anti-lock brakes, traction control, all-wheel drive (AWD) and other electronically monitored control systems..
Tire Chains Attention: 1, No sudden braking, sharp turns. 2, After installing the chains and driving for hundreds of meters, please tighten the chains again. 3, The driving speed should be less than 35 km / h. 4, When there is no snow or mud on the hard road and the anti-skid chains is not required, please take them off in time. 5, Installation is forbidden at the position of the inflation hole..
Heavy duty Material: The snow chains are made of alloy manganese steel, which ....

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O-MEGA Titan (Mini S-120)

15 inches long and weighs 1 lb with the two (2) 9v batteries installed. Two (2) 9v batteries and Custom Belt Holster are included!.
Top choice of power companies, animal control agencies, and law enforcement for protection against dog or other animal attacks. Self-defense, security, animal control and peace of mind..
Please note: There is a single spring loaded activation trigger. This means there is no ON/OFF SWITCH and when the batteries are installed the product is LIVE. Some of our products, such as this one, especially those used in animal control situations, do not have an ON/OFF switch because it limits reaction time to stop a surprise vicious attack. If you must have an ON/OFF switch or a kill switch: DON'T BUY THIS PRODUCT!.
It runs on 2 9v Batteries. We say "no" to cheap rechargeable batteries that, too often, fail..
Proprietary Pulse Frequency which incapacitates an attacker and can repel an aggressive animal attack..

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Pulse Generator, DROK 2pcs LCD Display PWM Frequency 1Hz-150kHz Duty Ratio 0-100 Percent Adjustable Square Wave Rectangular Wave Signal Generator Board

DROK pulse generator module operating voltage range is DC 3.3-30V, adjustable pwm frequency range is 1Hz-150kHz, adjustable duty ratio range is 0%-100%..
Application: it can be used as a square wave signal generator, generate square wave signal for experimental development.
generate square wave signal to control the motor driver.
generate adjustable pulse to control the relevant circuit (PWM dimming speed application etc)..
High Frequency Resolution: frequency in range 1Hz~999Hz, display resolution is 1Hz.
range 1.00kHz~9.99kHz, display resolution is 0.01kHz.
range 10.0kHz~99.9kHz, display resolution is 0.1kHz.
range 1kHz~150kHz, display resolution is 1kHz..
TTL Level Communication: the frequency meter is designed with single-chip TTL level communication, communication standard is 9600 bps..
LCD Display: the blue LCD clearly displays frequency and duty ratio, PWM output can set frequency and duty ratio independently..

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RuiLing 1-Pack 3.5mm IR Infrared Emission Line Remote Control Receiver Extension Cord Cable 1m

Package: 1 piece remote control extenders, light-weight, small-size and solid, commonly used when your receiver is hidden away in a cupboard, in a different room, or behind your TV..
Connector: Come with a standard universal 3.5mm jack male plug at one end and an IR emitter at the other, 1m cable long enough to position the sensor in anywhere in your house..
High Sensitivity: Real time transmission without any delay with its high sensitivity sensor. 38kHz frequency range, compatible with various of electronic products and appliances..
Purpose: Used with an IR Repeater kit to control a device, allow you to extend remote control ability to a location that the remote control or IR repeater system block can't reach..
Application: Allows you to control A/V component by the existing IR controller, such as set-top box, stereo receiver, car audio system, hard disk player, Satellite TV receiver, CD player, DVD player, Bluray player or other components..

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Ahwhg Anti Barking Device, Dog Barking Control Devices,Rechargeable Ultrasonic Dog Bark Deterrent up to 16.4 Ft Effective Control Range Safe for Human & Dogs Portable Indoor & Outdoor(Blue)

...ce for Dog Training and Dog Bark Control. The ultrasonic emitted by the Ahwhg bark control device can attract the attention of dogs and help prevent dogs from barking, digging, scratching, biting, climbing on furniture and other unwelcome behaviors..
Two Safe and Effective Frequency: This bark control device can emit 25KHZ fixed frequency and 30KHZ variable frequency, which humans won't receive but it works for dogs. The dog whistle to stop barking has no shock, no vibration, no noise,no touching the dog's skin, nor will it affect the dog's hearing,so harmless to dogs. Suitable for small medium large dogs..
Powerful and Easy To Use: Ahwhg dog barking control devices not only trains your dog, it also stops other dogs from approaching you while walking, jogging or biking. Just press the button and point the device at the dog while the dog is barking or approaching you, and the dog will stop their bad behavior. Quadruple tap to switch between the two frequency modes..
Longer Control Distance & Portable Size : The control range of bark deterrent is 16.4ft. The small dog barking deterrent along with a wrist st....

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Telemecanique SGA8176 Sensor Magnetic Switch

Applicable to a series of SI, SU, SC, JSI, MA50‑63 cylinders, meet your needs as much as possible..
High contact resistance, corrosion and wear resistance, stable switching operation, has long service life..
Fast moving speed, suitable for products with high working frequency, also has good performance..
Made of high‑quality plastic, durable and wear‑resistant, can be used for a long time..
The control part of the seal in the housing is not affected by the external environment..

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Nortek GoControl WD500Z5-1: Z-Wave Wall Dimmer Switch 500W 908.42 MHz 120VAC 15A

... model in black, brown, almond and ivory. Auto-Sense: Unique to Nortek Security & Control, the Auto-Sense feature allows for local lamp activation independent of the Z-Wave controller status..
Maximum Load: 500 Watts for control of permanently installed lighting fixtures only (Not for control of receptacles) Signal (Frequency): 908.42 MHz Range: Up to 100 feet line of sight between the wireless controller and/or the closest Z-Wave device Input: 120v 15A 60Hz.
Network wide inclusion Scene: Command class Security beaming Requires a Neutral Auto-Sense feature built-in Replaceable trim ring design.
Note to Installers: When installing a Z-Wave 3-Way Light setup utilizing Nortek Security & Control products, you will need a Load Bearing switch (WS15Z-1, WD500Z-1 or WD1000Z-1) and a non-load bearing WT00Z-1. Multiple WT00Z-1 switches can be utilized to control multiple Load Bearing devices. Please refer to the linked Technical Bulletin on Z-Wave 3-Way Light Switch Setup for more information..

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Bark Control Device, Upgraded Anti Barking Device with Effective 3 Adjustable Sensitivity and Frequency Levels, Ultrasonic Dog Bark Deterrent Pet Behavior Training

... bark control automatically emits high-pitched sounds that only dogs can hear. Automatically sense the sound of the dog, once the dog stops barking, the ultrasonic barking control automatically stops emitting ultrasonic waves..
【 & 】: Ultrasounds do not interfere or harm humans because humans cannot hear these frequency bands, but dogs are sensitive to these ultrasounds. Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results. If the dog is hard of hearing or aggressive, the device may not work as expected..
【】: Ultrasonic dog bark controls come in 3 adjustable sensitivity and frequency levels (15-30 KHZ, suitable for large, playful dogs.
30Khz suitable for small dogs) to help you choose different waves and handle different dog barks easily. Adjust the frequency of training each week to maintain the results of training. The 33 ft (10 m) wide control range is suitable for stopping the neighbor's dog from barking at you and your family..
【】: Ultrasonic penetration is 33ft, covering both indoor and outdoor areas. Compared to traditional dog trainers, it completely frees your hands. You can easily train your dog's behavior b....

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PreSonus Studio 1810c USB-C Audio Interface 18-in/8-out USB-C Audio Interface with 4 Xmax Preamps

...sonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning + Pair of Rockville RVSM1 Heavy Duty Near-Field Studio Monitor Stands w/ Adjustable Height for Use in any Studio Environment.
Pair PreSonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning. 3. 5-inch (89 mm) Kevlar low-frequency transducer. 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer. Rear-firing acoustic port for superior bass-frequency reproduction. Optimized, resonance-suppressing internal bracing. High- and low-frequency tuning controls. Front-panel Volume control for speakers and headphone amplifier..
50 watt (25W/side), Class AB bi-amplification. RF interference, output current limiting, over-temperature, transient, and subsonic protection. Amplifier “soft start” feature eliminates popping on power-up. Internal power supply with IEC connector. Power switch with on/off LED. Balanced ¼-inch TRS, unbalanced 1/8-inch stereo, and RCA inputs. Integrated stereo headphone amplifier with front-panel 1/8-inch output. Protection: . RF Interference. Output-Current Limiting. Over-Temperature. Turn-On/Off.
Specifications: Inputs: (1) Stereo 1/8" , (2) Balanced 1/4" TRS, (2) Unbalanced RCA . Frequency Response: 80 Hz - 20 kHz. Crossove....

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Rotary multifunctional tattoo machine, RCA tattoo gun tool Liner Shader

10W high-powered motor with high-powered engine, powerful and stable power, durable tattoo makeup, long-term operation without perm, suitable for all brands of tattoo syringes..
Tattoo machine, you can adjust the tension according to your needs, control the intensity and frequency, secant, fog, color, image, totem, old and new traditions allow to control any type of style, fast color, small skin lesions..
Easy weight control: ultra-light, easy to control and manage. Suitable for lining and shadows, easy to control, with calls and reception..
Adjustable tension, tattoo machine can adjust tension according to needs, intensity and frequency control, secant, fog, color, image, totem, old and new..
Low noise, giving guests a quiet tattoo environment. The body part consists of a highly anodized surface that is not easily scratched and faded.

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