---
product_id: 75976304
title: "KEMO Ultrasonic Power Cannon Building Block"
brand: "kemo"
price: "£39.50"
currency: GBP
in_stock: true
category: "Kemo"
url: https://www.desertcart.co.uk/products/75976304-kemo-ultrasonic-power-cannon-building-block
store_origin: GB
region: United Kingdom
---

# 12-14.4V power range LED pulse indicator 22 kHz ultrasonic frequency KEMO Ultrasonic Power Cannon Building Block

**Brand:** kemo
**Price:** £39.50
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your build with ultrasonic precision and power!

## Quick Answers

- **What is this?** KEMO Ultrasonic Power Cannon Building Block by kemo
- **How much does it cost?** £39.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/75976304-kemo-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

- • **Visual Pulse Feedback:** Integrated LED flashes to confirm active speaker connection—stay in control at a glance.
- • **Compact & Lightweight Design:** Just 3.94 x 2.36 x 2.36 inches and 0.02 lbs—fits seamlessly into any build.
- • **Precision Ultrasonic Frequency:** Operates at a crisp 22 kHz—inaudible yet powerful for cutting-edge performance.
- • **Rechargeable Lead Acid Battery:** Sustainable power with easy rechargeability for continuous, reliable operation.
- • **Energy-Efficient Power Consumption:** Max 150 mA ensures long-lasting use without draining your setup.

## Overview

The Ultrasonic Power Cannon Building Block delivers a high-frequency 22 kHz output powered by a 12-14.4V rechargeable lead acid battery, consuming just 150 mA max. Its compact, lightweight design and LED pulse indicator make it an efficient, user-friendly component for advanced speaker applications.

## 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)

## 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 Amps |
| Antenna Location | Speaker |
| Battery Cell Type | Lead Acid |
| Best Sellers Rank | #81,179 in Musical Instruments ( See Top 100 in Musical Instruments ) #67 in Hand Percussion Blocks |
| Brand | KEMO |
| Customer Reviews | 2.7 2.7 out of 5 stars (50) |
| 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 | 0.02 Pounds |
| Manufacturer | Kemo Electronic |
| Model Name | M161 |
| Model Number | M161 |
| Reusability | Rechargeable |
| Unit Count | 1.0 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

![KEMO 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.)

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**Shop now:** [https://www.desertcart.co.uk/products/75976304-kemo-ultrasonic-power-cannon-building-block](https://www.desertcart.co.uk/products/75976304-kemo-ultrasonic-power-cannon-building-block)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-14*