Ultrasonic Dog Bark Deterrent Device, Anti-Barking Control Device with LCD Screen & 3 Modes, Dog Training Tools to Stop Bad Behaviors, Safe Trainer Up to 35ft for Indoor Outdoor Use-01
$19.99
Price: $19.99
(as of Mar 22, 2026 01:02:14 UTC – Details)
Product description
Package Dimensions : 5.31 x 2.52 x 1.93 inches; 5.93 ounces
Item model number : TZ-U38
Batteries : 1 Lithium Ion batteries required.
Date First Available : May 10, 2025
Manufacturer : RALYUNI
ASIN : B0F8821YV1
Best Sellers Rank: #31,232 in Pet Supplies (See Top 100 in Pet Supplies) #79 in Sonic Bark Deterrents
Customer Reviews: 4.1 4.1 out of 5 stars (588) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
♥Dual-Emitter Ultrasonic Technology♥: Designed specifically for dogs with varying temperaments and behaviors, this ultrasonic dog training device features two frequency modes—25kHz fixed mode for consistent correction and 15kHz-30kHz variable frequency mode for personalized training. The dual-emitter design provides a wider ultrasonic range of up to 16.4ft-35ft, making the ultrasonic dog repeller ideal for both indoor and outdoor use.
♥Upgraded Clear LCD Display♥: This dog training tool helps pet owners correct unwanted behaviors such as barking, chewing, digging, or jumping in gentle and respectful methods. The advanced high-definition LCD screen displays the current operating mode and battery level clearly, allowing users to make real-time adjustments for optimal training results. The display automatically turns off after 30 seconds to conserve battery life.
♥Built-in Dual LED Lights for Enhanced Night Safety♥: Featuring built-in dual LED lights, this ultrasonic dog repeller/stopper enhances visibility during low-light conditions, ensuring the safety of both you and your dog. And it also includes a powerful flashing mode that acts as an additional deterrent against aggressive or unfriendly dogs, making it a safer and more efficient training tool.
♥Compact & Portable with Type-C Charging Port♥: This sleek pocket-sized device comes with a modern Type-C charging port for quick and convenient charging via standard USB devices such as adapters, power banks, laptops, or car chargers. Powered by a 1200mAh rechargeable battery, it offers long-lasting performance and is lightweight enough for everyday carry during home training, walks, or travels.
♥Three Effective Training Modes♥: Equipped with three versatile modes—ultrasonic, beep sound, and a combination of ultrasonic with flashing lights, the dog training devices effectively controls barking and other undesirable habits in a safe manner. Ideal for small, medium, and large breeds aged 6 months to 8 years. And, the dog silencer for barking will automatically be off after 8 seconds to ensure the safety of your dog.
13 reviews for Ultrasonic Dog Bark Deterrent Device, Anti-Barking Control Device with LCD Screen & 3 Modes, Dog Training Tools to Stop Bad Behaviors, Safe Trainer Up to 35ft for Indoor Outdoor Use-01
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Jeremy Ladd –
Results in 1st use
I only have one dog, but this ultrasonic training device has made a huge difference in our daily routine. My pup has a tendency to bark excessively and get overly excited during walks and when we have visitors over. I wanted something that was effective but still gentle. This tool delivered on both fronts!The dual-emitter ultrasonic technology really works — I noticed a change in behavior almost immediately. The two frequency modes give me the flexibility to adjust based on how she responds, and the range is perfect for both indoor and outdoor use.I also love the clear LCD screen — it shows the mode and battery life, which is super convenient. And the USB-C charging is quick and easy. I’ve only charged it once and it’s still going strong.One of my favorite features is the built-in LED lights. They add a layer of safety during nighttime walks and the flashing light option is great for keeping unfamiliar or aggressive dogs at a distance.The three training modes (ultrasonic, beep, and combo) give me exactly what I need to gently correct behaviors like barking or jumping. It’s compact, lightweight, and easy to carry anywhere.If you’re a dog owner looking for an effective, safe, and respectful way to train, I highly recommend this device. It’s been a game changer for me and my dog!
Carla Medlin –
Works wonderfully.
As long as your dog isn’t hard of hearing this little thing is perfect for bark deterrent. I have trained my neighbor’s dogs to not bark with this device.Very good quality easy to use .would definitely buy it again
Jessica Bradfield –
Helpful training tool that actually works!
I was a little skeptical at first, but this device really does help with controlling my dog’s barking. The design is lightweight and easy to hold, and the LCD screen makes it simple to switch between the 3 modes. I like that it has some range to it—I can use it in the house or outside in the yard, and it still works from a good distance.The sound is safe and doesn’t hurt my dog, but it definitely gets her attention and stops the barking almost instantly. I’ve also used it to correct other behaviors like jumping up or chewing, and it’s been effective for that too.Battery life is solid, and I appreciate that it charges quickly. It’s not a magic fix—you still need to pair it with consistent training—but it’s a great tool to have for reinforcing good behavior without yelling or frustration.Overall, a very useful device if you’re looking for a safe and humane way to cut down on barking and help with training.
Donna Whitmore –
Seems to work
Seems to work ok – maybe not as effective as a shock collar, but safer for smaller dogs!
Michelle –
Effective without harming your dogs!
I have trouble controlling my dog’s barking when she’s in our backyard because she is so territorial. All my neighbors also have dogs so they egg each other on. This device quiets ALL the dogs almost immediately without hurting them. It has even come to a point where when my dog sees the product, she will not bark even when I don’t actually use it; it trained her prevent barking lol. LOVE this product. I’m sure the neighborhood is also appreciative of it.
Charlie –
WORTH IT!
I typically do not write reviews on Amazon, but I had to about this product. I have a VERY stubborn dog, like VERY STUBBORN. This remote is like a gift from Heaven! I have tried SO MANY things in the past, treats, prongs, ecollars, and nothing! But the remote works like a charm!When she barks, I press the button and she listens right away. This is the best thing ever made for stubborn dogs. I think my dog is selective with her hearing because she knows what I’m saying and chooses not to do it, but this remote makes her listen. If she doesn’t respond to the first sound, she for sure responds to the second ultrasoundic one.I would give this an even higher review if I can. I was on the verge of rehoming my dog because of her behavior, as my health hasn’t been great and her behavior was affecting it. This remote allowed me to keep my dog and lower the effect on my health. Truly the best because I wouldn’t be putting a review if I didn’t think it wasn’t worth it!It is worth the money, it has amazing effects right away, it’s small to carry around, and the quality is amazing! 10/10 would definitely recommend!
Teresa L Lanning –
Was not helpful in training my dog
Didn’t affect my dog. Just the noise got to her. Would not recommend.
msrobrob –
Very helpful for all dogs in range.
Our older dog doesn’t really react to this, but the other 5 dogs in the house do. We don’t have to use it all the time because they don’t bark as much as prior to having this. One really nice plus is the neighbor dog used to bark at us every time we went outside. After a couple times using this out our front door we can walk around without all the barking.I’m not saying the dogs don’t ever bark. It has cut this down to a minimum though. And no one wears a collar.
Carlos Iran Kraey –
Não sei bem como descrever. Funcionou apenas para nossa Sptz alemão. Tenho um Australian cattle dog que não dá a mínima para o zumbido… parece que não funciona com longas distâncias (dentro da margem especificada). Além do que comprei mais caro por não ter percebido que outra cor é mais barato. 🫠Eu não tenho como indicar ou não. Acredito que dependa muito do pet. Mas confesso que eu esperava mais, pesquisei bastante, tinha uma nota boa e boa qualidade. Não é um aparelho mal feito nem nada, muit pelo contrário. Se eu não tivesse destruído a embalagem provavelmente faria a devolução.
Kelvin Kuzyk –
I bought this item arrived on time well packaged and worked perfectly I was impressed.
Yussef Rios –
Buen producto, funciona excelente
Eduardo Pérez –
Funciona con un 90% de los perros que he encontrado. Lo recomiendo.
This item will be returned. It said DeWalt on the info but it is not and it came with no battery –
Surprisingly works really well. I’d recommend!