--- product_id: 75976304 title: "Ultrasonic Power Cannon Building Block" brand: "kemo" price: "€ 68.52" currency: EUR in_stock: true reviews_count: 8 category: "Kemo" url: https://www.desertcart.be/products/75976304-ultrasonic-power-cannon-building-block store_origin: BE region: Belgium --- # 12-14.4V operating voltage 300m acoustic range with tube 22 kHz ultrasonic frequency (inaudible) Ultrasonic Power Cannon Building Block **Brand:** kemo **Price:** € 68.52 **Availability:** βœ… In Stock ## Summary > πŸš€ Ultrasonic Power Cannon: The silent guardian your garden deserves! ## Quick Answers - **What is this?** Ultrasonic Power Cannon Building Block by kemo - **How much does it cost?** € 68.52 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/75976304-ultrasonic-power-cannon-building-block) ## Best For - kemo enthusiasts ## Why This Product - Trusted kemo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Extended Acoustic Reach:** Covers up to 300 meters with optional tube attachment for maximum garden and field protection. - β€’ **Energy Efficient Operation:** Consumes just 150 mA max, balancing power and longevity for continuous use. - β€’ **Visual Connection Indicator:** Integrated LED flashes to confirm active speaker and pulse connection, ensuring reliable performance. - β€’ **Customizable Multi-Unit Setup:** Designed for staggered deployment to maximize coverage and effectiveness against persistent wildlife. - β€’ **Precision Ultrasonic Deterrence:** Emits targeted 22 kHz pulses to keep wild animals at bay without disturbing pets. ## Overview The KEMO Ultrasonic Power Cannon is a rechargeable, 12-14.4V device that emits inaudible 22 kHz ultrasonic pulses to deter wild animals up to 300 meters away. Featuring a flashing LED indicator and low power consumption, it’s ideal for professional-grade wildlife control in gardens and fields. Optimal results require the correct piezo speaker and strategic multi-unit setups. ## Description For scaring wild animals such as martens, wild boars, deer, etc. from gardens, fields, etc. The speaker emits pulse-like ultrasonic sounds that have an acoustic range of up to 300 m with an attached tube (not included) Review: no effect on cats, dogs - does not work on dogs, cats at all, they barely flinch. probably need to hook it up to a high power amp with high capacity tweeters, then should work. Review: Know what you are doing! - 1. BUY THE RIGHT PIEZO speaker. I can't say that enough times. 2. Yes, it's a .5s burst every 5s. So buy more than one, and stagger them! Yeah it might get expensive. But what do you want? Something that works, or another gadget that doesn't? I have 3 of them now and I run them staggered; this isn't hard if you know how. I don't want to add any more for fear the cannon will get heavy, but that's probably unjustified. What really gets heavy is the battery pack, although LiPo's work and... google is your friend. I'm not going to give a tutorial, again google is your friend. They're hooked up to a pair of the piezos that I have in my "double barrel" shotgun made of 1" PVC piping. The extra set of electronics/passives and the amps themselves are in the "magazine." I use it to shut up a dog that's about 200 meters away. It works EVERY time. the dog will run around to the other side of their barn and stay there for at least an hour. On the other side of my property is another pair of dogs- a Marmaduke dog and a bulldog, both very stupid animals. It takes a few rounds to get them to leave, but they do. Works every time. (I'm a dog lover, btw, so don't get all wierd on me. (I have two myself but they come when they're called and shut up when I do call them. So this is really about the owners, not the dogs.) The cannon will also work on a variety of other animals, too. Birds, for example. Specifically, chickens- including roosters. But it doesn't last long and it can't be used too often; they get used to it pretty quick. It WILL scare wild birds away though. This rig is not for the noob. Know what you're doing and it'll work. Last little comment: you absolutely MUST use the right speaker for this thing. MANDATORY. The last one I bought came with the right speaker; the company must've gotten wise to this. Don't listen to anyone who says the thing doesn't work, I'd bet it's because they got the wrong speaker for it. (Yeah yeah ask me how I know.) Anyway, 5 stars because it's awesome, with 3 for ease of use/sturdiness and 4 for value. ## Features - Operating voltage: 12 - 14.4 V/DC - Power consumption max. 150 mA - Frequency: approx. 22 kHz (inaudible to humans - Frequency curve sinus - LED that flashes when the speaker is connected when the pulse is connected ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002AFL1JW | | Amperage | 150 A | | Antenna Location | Speaker | | Battery Cell Composition | Lead Acid | | Battery Cell Type | Lead Acid | | Best Sellers Rank | #24,494 in Musical Instruments ( See Top 100 in Musical Instruments ) #20 in Hand Percussion Blocks | | Brand | KEMO | | Customer Reviews | 2.7 out of 5 stars 50 Reviews | | EU Spare Part Availability Duration | 1 years | | Global Trade Identification Number | 04024028031613 | | Item Dimensions | 3.94 x 2.36 x 2.36 inches | | Item Weight | 9.07 g | | Manufacturer | Kemo Electronic | | Model Name | M161 | | Model Number | M161 | | Recommended Uses For Product | Speaker | | Reusability | Rechargeable | | Unit Count | 1 Count | | Voltage | 12 volts | | Warranty Description | no Guarantee | ## Product Details - **Battery Cell Composition:** Lead Acid - **Brand:** KEMO - **Recommended Uses For Product:** Speaker - **Unit Count:** 1.0 Count - **Voltage:** 12 Volts ## Images ![Ultrasonic Power Cannon Building Block - Image 1](https://m.media-amazon.com/images/I/81wZFSNt0-L.jpg) ## Questions & Answers **Q: What diameter and lenght of pvc tube to use as a cannon?** A: I used 1 1/4” by 6.1” long PVC pipe. That length is 10 wave lengths for 22 kHz. Works good for the dogs across the street. I also used a remote control switch to active it. Press the button for 10 or so seconds rather than leave on continually. **Q: How many tweeters will the m161 generator handle?** A: Max 2 **Q: Hello, can this be used in a car to a avoid running over dogs and cats on the streets?** A: I would say NO based on my experience with it having NO effect at all on any of our neighbors dogs, wild deer, ground hogs, raccoons, squirrels, coyote etc. Very disappointed… I have heard good things about the Deer Whistles or Wildlife Warning Devices sold at any box store which are only like $5.00 **Q: Is the remote control switch mentioned by others available on Amazon? Does this come with directions (I am a novice).** A: Search amazon for remote outlet switch. They are pretty common and many use them to turn lamps or other devices on/off by remote. Just plug the 12 volt AC adapter into that. (The LE Power Adapter lets you hot wire with an adapter it comes with.) ## Customer Reviews ### ⭐ no effect on cats, dogs *by R***L on June 3, 2023* does not work on dogs, cats at all, they barely flinch. probably need to hook it up to a high power amp with high capacity tweeters, then should work. ### ⭐⭐⭐⭐⭐ Know what you are doing! *by J***R on June 2, 2021* 1. BUY THE RIGHT PIEZO speaker. I can't say that enough times. 2. Yes, it's a .5s burst every 5s. So buy more than one, and stagger them! Yeah it might get expensive. But what do you want? Something that works, or another gadget that doesn't? I have 3 of them now and I run them staggered; this isn't hard if you know how. I don't want to add any more for fear the cannon will get heavy, but that's probably unjustified. What really gets heavy is the battery pack, although LiPo's work and... google is your friend. I'm not going to give a tutorial, again google is your friend. They're hooked up to a pair of the piezos that I have in my "double barrel" shotgun made of 1" PVC piping. The extra set of electronics/passives and the amps themselves are in the "magazine." I use it to shut up a dog that's about 200 meters away. It works EVERY time. the dog will run around to the other side of their barn and stay there for at least an hour. On the other side of my property is another pair of dogs- a Marmaduke dog and a bulldog, both very stupid animals. It takes a few rounds to get them to leave, but they do. Works every time. (I'm a dog lover, btw, so don't get all wierd on me. (I have two myself but they come when they're called and shut up when I do call them. So this is really about the owners, not the dogs.) The cannon will also work on a variety of other animals, too. Birds, for example. Specifically, chickens- including roosters. But it doesn't last long and it can't be used too often; they get used to it pretty quick. It WILL scare wild birds away though. This rig is not for the noob. Know what you're doing and it'll work. Last little comment: you absolutely MUST use the right speaker for this thing. MANDATORY. The last one I bought came with the right speaker; the company must've gotten wise to this. Don't listen to anyone who says the thing doesn't work, I'd bet it's because they got the wrong speaker for it. (Yeah yeah ask me how I know.) Anyway, 5 stars because it's awesome, with 3 for ease of use/sturdiness and 4 for value. ### ⭐⭐⭐⭐ it works *by B***B on October 31, 2019* Works great...the mutt next door starts frantically yipping and trying to get inside its' house! --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/75976304-ultrasonic-power-cannon-building-block](https://www.desertcart.be/products/75976304-ultrasonic-power-cannon-building-block) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-23*