Reviews Acapella High frequency Device

FILTRETE1000 20x25X4 2PK by FILTRETE MfrPartNo ADP03-2PK-2

  • The filter has the characteristics of low insertion loss, high resistance band rejection and high image attenuation, high power tolerance, low cost and miniaturization..
  • Convenient debugging, good selectivity and stability.
  • A band-pass filter is a device that allows a particular frequency band to block other frequencies simultaneously..
  • With high reliability, stable and reliable working performance.
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Zigzagmars Anti Bark Control Device, 2023 Newest Stop Dog Barking Deterrent with Adjustable Ultrasonic Level Rechargeable Waterproof Outdoor Sonic Bark Stopper for Small Large Dogs, Up to 50 Ft Range

  • Adjustable Sensitivity & Frequency - The anti barking device has 4 levels of sensitivity and 4 levels of frequency (15KHZ-30KHZ) adjustable. Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results. The dog device is suitable for dogs between 6 months and 8 years of age, except for dogs with hearing impairments or under 6 months and special large dogs..
  • Safe for Dogs and People - The Bark Control uses ultrasonic technology to allow humans to hear slight sounds but not affected by the sound, but dogs will be sensitive to these ultrasonic waves and other family members or neighbors will not worry about being affected. Ultrasounds do not inflict substantial penalties on dogs. Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results..
  • Easy to Use - The bark control device use the latest ultrasonic technology, suitable for all breeds and sizes of dogs. The device has a built-in pickup that can detect the dog's barking within 50 feet and automatically emits ultrasonic that the dog can hear. Once the dog stops barking, the device automatically stops. Effectively training your dog ....
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Kaiertcat Anti Barking Device, Bark Control Device, Dog Barking Deterrent with Adjustable Level Sonic Bark Up Dog Training Tools to 50 Ft Range Safe for Dogs, black 2

  • ...light mode, NZONPET can effectively train your dogs to stop unwanted behaviors like barking, digging, clawing, scratching or biting while also preventing them from climbing into high places such as chairs or couches which could lead to injury. A free gift dog clicker is inside the package..
  • Equipped with 3 Different Frequency Sound Waves: NZONPET ultrasonic dog bark deterrent can emit ultrasonic sounds with three different frequency sound waves.
  • stable frequency, undulating frequency, and irregular frequency sound waves to ensure dogs do not get used to a certain frequency. Grab your dog's attention by simple point and click. There is also a big button for easy clicking and a loud sound when using the clicker..
  • Ultra Battery Life and Rechargeable: NZONPET offers you an alternative to the standard bark collar. The rechargeable bark stop is a 300mah battery full charge in 1 to 2 hours that has been designed for short-distance travel and outdoor activities - meaning bringing it with you on your next hike or camping trip will be no problem at all. It can last up to 12 days without charging, and standby time is up to 15 days. Leaving home never meant being left behind in terms of keeping pets quiet!.
  • User’s Guidance: The ultrasonic training clicker doesn't....
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Vangoa Portable Piano Keyboard, with Touch Sensitive Keys and Coolmusic Electric Drum Amplifier 100w

  • ✔️[Excellent Sound Performance] 100 watt drum amp enables you to get the greatest sound performance with its excellent responsiveness and clean amplification on various occasions. 10-inch woofer adds depth to different sounds with low frequencies, perfect for giving your e drums a significant sound boost, and 1-inch tweeter makes high-frequency sounds cracking richer and more realistic regardless of volume or frequency.
  • ✔️[Enhanced Connectivity] 2 inputs along with stable Bluetooth and practical USB connection, you could have 3 signals going through the drum monitor at once: drum set, backing track, and bass guitar or keyboard, you can play any songs from your device without worrying about incompatibility issues. 3-band EQ lets you control low, mid, and high frequencies with the turn of a knob to shape the sound with precision.
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EMI Power Filter,EMI Power Filter with Fuse Socket 2 in 1 Single Safety 125/250V

  • Power supply EMI filter is a kind of reactance-type low-pass filter, installed at the power supply input of electronic equipment..
  • It can inhibit noise transmitted through grid power cable, and can inhibit high-frequency interference signals generated by the electronic device itself..
  • Widely used for precision measuring instruments, building automation, precision machinery, elevator lifting equipment, automated system, calculator inverter office equipment, servo system inverter equipment, frequency conversion equipment, lighting equip.
  • High quality imported components provide obvious filtering effect.EMI has become a must have device installed in electronic equipment..
  • We strive to provide a product of the highest quality and the best customer experience, if you are not completely satisfied, do not hesitate to contact us at any time..
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PEKET Anti Barking Device, Ultrasonic Dog Barking Control Devices Up to 50 FT Range for Outdoor & Indoor, Dog Barking Deterrent with 3 Adjustable Frequency Sensitivity Safe for Human & Dogs

  • 【Safer for Dog & People】- Ultrasound will not cause any interference or harm to the human body. The ultrasonic frequency emitted by the ultrasonic barking controller is within the average hearing range of a dog. Other family members or neighbors will not worry about being affected. It does not cause major punishment to the dog, it emits an ultrasound that only dogs can hear to get its attention..
  • 【3 Adjustable Frequency】-The Dog Barking Deterrent Device has 3 adjustable levels (15FT-50FT). Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results. If you or your neighbor's dog barks too excitedly, put it in the right spot, and you'll have a quiet resting environment..
  • 【Easy to Use】Anti Barking Device has a built-in pickup that can detect the dog's barking within 50 feet and automatically emits ultrasonic that the dog can hear. Once the dog stops barking, the device automatically stops. Compared with the traditional dog training device, it completely frees your hands. Automatic and effective training your dog to stop excessive and noisy barking..
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Predator K-1-9 Cowtown CB Radio Antenna 10,000W

  • SAY HELLO TO GRIDDY! - Ultra-wideband yet super high gain. Griddy has 12-17 dBi of gain on the 600-960 MHz frequency bands.
  • 20-23 dBi of gain on the 1700-2700 MHz frequency bands.
  • and 23-26 dBi of gain on 3000-6500 MHz frequency bands..
  • GRIDDY NEEDS LINE OF SIGHT - Since Griddy has such high gain, it’s important to have line of sight to the cell tower or WiFi access point you’re connecting to. Any dispersion or reflection through trees or buildings will make Griddy much less effective..
  • LIGHTNING FAST DATA RATES: Struggling to get a consistent signal with a cell booster? Getting low data rates from your LTE modem? As long as you have line of sight to the tower, Griddy will help you get blazing fast data. Simply install the antenna in place of your current antenna, aim it at the tower, and enjoy the fastest possible data rates..
  • GRIDDY SUPPORTS 4G LTE, 5G NR, and WIFI: Griddy connects to the antenna ports on your hotspot, router, or WiFi device to give you extra signal. Griddy comes with 50 Ohm N-Type connectors. You’ll need to connect this antenna to a signal booster, LTE router, or WiFI access point with their respective adapters..
  • USE 2X OR 4X GRIDDY KITS FOR MIMO: If your WiFi/LTE/5G device supports multiple external antennas you can choose to u....
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Lalasani Sleep Instrument – Hand Held Sleep Aid Machine for Adults with Improving Sleep and Stress Relief Anxiety

  • ...vice can also regulate emotions and calm emotions. Wearing sleep aids devices used in the office or study area can help you focus on important matters and get the job done efficiently and study.
  • Easy to Use: To put the front of the sleep aid device for adult completely in your hand, press the power button is the low-frequency ,two available operating modes, low-frequency decompression mode and high-frequency inspire mode, just press the power button to adjust the mode, press + /-to increase or decrease the intensity.
  • Idea Gift Choice : The sleep aid machines accompanied in a luxury Box. Using it can help you fall asleep faster and relax completely during sleep, for friends family with sleep problems, this is a good gift.
  • Worry-free After-sales Service: If you are dissatisfied with our sleep aid device, you don’t need to worry about it, you can choose to exchange it ,or return it to get a full refund , which is very convenient and reassuring..
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Sleep Aid Device for Adults,Hand-held Micro-Current Intelligent Relieve Anxiety Depression Fast Sleep Instrument,USB Charging Pressure Release Help Sleep Tool (M002-Green)

  • ...sychological quality to help you fall asleep as soon as possible. relieving stress helps to fall asleep quickly to relieve stress and improve sleep quality..
  • 【USB fast charging】Lightweight and portable, easy to operate. Light weight, small size, USB charging speed, easy to use, two available operating modes, low-frequency decompression mode and high-frequency inspire mode, just press the power button to adjust the mode, press + /-to increase or decrease the intensity. Multi-scene use..
  • 【Advanced technology】This sleep aid device is lightweight, small, portable and easy to operate. USB charging is environmentally friendly. Two available operation modes, low frequency decompression mode and high frequency excitation mode, just press the power button to adjust the mode and press +/- to increase or decrease the intensity..
  • 【Suitable for different occasions】Can be used in the office, home and business trips, 15 minutes a day can moderately relieve headaches, help you get rid of insomnia, anxiety, sleep problems, and help you get a good night's sleep..
  • 【Thoughtful gifts】Do you often have trouble falling asleep and waking up? you should try something new to make some changes. Using this product, you can help you fall asleep faster and relax compl....
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