---
product_id: 387709362
title: "E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A"
brand: "e-outstanding"
price: "€ 31.76"
currency: EUR
in_stock: true
reviews_count: 5
category: "E Outstanding"
url: https://www.desertcart.fi/products/387709362-e-outstanding-piezo-loudspeaker-2pcs-ultrasonic-speakers-piezoelectric-tweeter-horn
store_origin: FI
region: Finland
---

# Waterproof ABS shell 90dB min sound output -20 to 70°C operating range E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A

**Brand:** e-outstanding
**Price:** € 31.76
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your sound game with ultrasonic precision and rugged reliability!

## Quick Answers

- **What is this?** E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A by e-outstanding
- **How much does it cost?** € 31.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/387709362-e-outstanding-piezo-loudspeaker-2pcs-ultrasonic-speakers-piezoelectric-tweeter-horn)

## Best For

- e-outstanding enthusiasts

## Why This Product

- Trusted e-outstanding brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Installation:** Plug-and-play design with flush mount compatibility for seamless integration.
- • **Built to Brave the Elements:** Waterproof ABS casing ensures durability and consistent performance rain or shine.
- • **Crystal-Clear Ultrasonic Range:** Experience precise 10-50 kHz frequency for cutting-edge sound clarity.
- • **Long-Distance Sound Transmission:** Optimized for extended reach, making your ultrasonic applications more effective.
- • **Reliable Performance in Extreme Conditions:** Operates flawlessly from freezing cold to scorching heat (-20 to 70°C).

## Overview

The E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers (KS-3840A) deliver a powerful 90dB minimum output within a 10-50 kHz frequency range. Crafted with a waterproof ABS shell, these compact 38x12.4 mm tweeters are designed for easy installation and long-distance ultrasonic transmission. Built to withstand temperatures from -20 to 70°C, they offer consistent, high-performance sound ideal for ultrasonic applications.

## Description

Specification Shell material: ABS. Size: about 38 X12.4 mm. Rated voltage: 10 Vp-p. Frequency range: 10-50 kHz. Minimum sound output: 90dB (10cm at 40kHz). Working temperature: -20 -70 degrees Celsius. Feature Easy installation, long transmission distance and good performance. Waterproof, anti-mosquito, sound pressure, good consistency. Note: When measuring manually, there is a small reasonable error range.

Review: If you are trying to shut up your neighbors dog with an ultrasonic generator and your speaker budget is $8 these are great, If money is no object and you want the neighbors dog to question their life choices get a ORION HCCA-TN1. I started with these little piezo tweeters and they definitely annoyed the little yappers, but I eventually upgraded to the $100 orion speaker and it looks like they got zapped with a stungun when I turn it on and they go inside and shut up.
Review: Even with amplifier, output is weak.

## Features

- Made of high-quality materials and has a long service life.
- Easy installation, long transmission distance and good performance.
- Waterproof, anti-mosquito, sound pressure, good consistency.
- Shell material: ABS. Size: about 38 X12.4 mm.
- Rated voltage: 10 Vp-p. Frequency range: 10-50 kHz. Minimum sound output: 90dB (10cm at 40kHz). Operating temperature: -20 -70 degrees Celsius.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08SLZBKCH |
| Best Sellers Rank | #109,306 in Electronics ( See Top 100 in Electronics ) #423 in Coaxial Car Speakers |
| Compatible devices | Laptop, Smartphone, Tablet |
| Control method | Touch |
| Input voltage | 10 Volts |
| Is waterproof | True |
| Item model number | PLUSPTH-2 |
| Manufacturer | E-outstanding |
| Material | ABS, Acrylonitrile Butadiene Styrene |
| Model name | PLUSPTH-2 |
| Mounting type | Flush Mount |
| Number of Items | 2 |
| Package Dimensions | 6.6 x 4.5 x 1.5 cm; 9 g |
| Power source | Battery Powered |
| Recommended uses for product | For Ultrasonic Applications |
| Speaker size | 10 Centimeters |
| Speaker type | Tweeter |
| Special features | Waterproof |
| Subwoofer diameter | 10 Centimeters |
| Surround sound channel configuration | 2.0 |
| Wireless communication technologies | Bluetooth |

## Product Details

- **Audio output mode:** Standard
- **Brand:** E-outstanding
- **Connectivity technology:** Bluetooth
- **Frequency response:** 50 KHz
- **Speaker maximum output power:** 90 Watts

## Images

![E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A - Image 1](https://m.media-amazon.com/images/I/61A7JDZwlBL.jpg)
![E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A - Image 2](https://m.media-amazon.com/images/I/61Ia-+SKBOL.jpg)
![E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A - Image 3](https://m.media-amazon.com/images/I/61W++863JbL.jpg)
![E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A - Image 4](https://m.media-amazon.com/images/I/61cUUELkhUL.jpg)
![E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A - Image 5](https://m.media-amazon.com/images/I/710jVwA9pnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by D***H on 30 July 2025*

If you are trying to shut up your neighbors dog with an ultrasonic generator and your speaker budget is $8 these are great, If money is no object and you want the neighbors dog to question their life choices get a ORION HCCA-TN1. I started with these little piezo tweeters and they definitely annoyed the little yappers, but I eventually upgraded to the $100 orion speaker and it looks like they got zapped with a stungun when I turn it on and they go inside and shut up.

### ⭐⭐ Review
*by P***A on 9 September 2025*

Even with amplifier, output is weak.

### ⭐⭐⭐⭐ Review
*by M***S on 29 November 2024*

So far so good

## Frequently Bought Together

- E-outstanding Piezo Loudspeaker 2PCS Ultrasonic Speakers Piezoelectric Tweeter Horn KS-3840A
- KEMO Ultrasonic Signal Generator Module, Push Button Switch, Rotary Actuator, Automatic Operation, Black
- MEETOOT 2PCS Ultrasonic Speaker Piezo Loudspeaker Piezoelectric Tweeter Horn

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-03*