--- product_id: 418018625 title: "Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS" brand: "hahiyo" price: "€ 17.03" currency: EUR in_stock: true reviews_count: 9 category: "Hahiyo" url: https://www.desertcart.hr/products/418018625-hahiyo-electronic-buzzer-alarm-12v-400hz-beep-continuous-sounder-active store_origin: HR region: Croatia --- # 12V continuous loud beep Easy wire-in installation 400Hz precise frequency Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS **Brand:** hahiyo **Price:** € 17.03 **Availability:** ✅ In Stock ## Summary > 🔔 Stay alert, stay ahead — the buzzer that means business! ## Quick Answers - **What is this?** Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS by hahiyo - **How much does it cost?** € 17.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/418018625-hahiyo-electronic-buzzer-alarm-12v-400hz-beep-continuous-sounder-active) ## Best For - hahiyo enthusiasts ## Why This Product - Trusted hahiyo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable ABS Shell:** Flame-retardant, anti-aging, and wear-resistant for long-lasting reliability. - • **Plug & Play Wiring:** Simple integration with TTL or low voltage circuits—no hassle, just install and secure. - • **Powerful 12V Loud Alarm:** Cut through noise with a piercing 400Hz beep that commands attention. - • **Customizable Sound Levels:** Control volume easily via voltage tweaks, resistors, or simple DIY hacks. - • **Versatile Application Ready:** Perfect for security, motorcycles, boats, and home alarms—never miss a warning. ## Overview The HAHIYO Electronic Buzzer Alarm delivers a loud, continuous 400Hz tone at 12V DC, engineered for high durability with a flame-retardant ABS shell. Designed for easy wiring and versatile use across security systems, vehicles, and home alarms, it ensures you never miss critical alerts. Compact and robust, this 2-piece set is your go-to audible warning solution. ## Description Material:Plastic Quantity:2pieces with 2 mounting holes for screw fixing Size:Body size:34 x 17x 15mm / 1.3" x 0.7" x 0.6" (L*W*T).Wire length:10cm/3.94" The electronic buzzer will make a loud and continuous tone when powered.The sound above the engine can be heard from a few feet away.Widely used in computers,printers,copiers,alarms and other electronic products as sound devices. Review: A video for people to hear it. - It functions, it's small and lightweight. It makes a reasonably loud buzzing sound. I think it will be plenty loud to warn me that I forgot to turn my headlights off. I may wrap it with something if it's too loud. I haven't used it yet, but if it fails sooner than it should in some way I'll update the review. I mainly left a review so I could post a video, and some photos with size reference. It's annoying to shop for noisemakers where you can't hear the sound they make. Seems like a glaring omission from the listing to not have a sound file to listen too?! Review: The dogs hear them just fine - Like the description says, "Loud enough for the dogs to hear" (and I don't even have dogs). I bought these to make a headlight reminder because I'm tired of leaving my headlights on & draining the battery (old car). They're plenty loud enough to hear, and unpleasant enough sounding to train you to turn off the lights to avoid hearing them! ## Features - Secure.The electronic buzzer will make a loud and continuous tone when powered.The sound like a car alarm.The sound above the engine can be heard from a few feet away.Loud enough for the dogs to hear.If used indoors they are loud enough,work great as a door chime.Fairly loud to act as a good audible warning device.Very loud at 12VDC or 3VDC. - Work well over the rated voltage range.If you think it's better to have a lower voice,there are several ways.The first,add a little resistor or two to reduce the sound level.The second,use a simple piece of electrical tape to cover all or part of the outlet.The third,wrap the buzzer in paper towel and duct tape.Also you can vary the voltage or use PWM to control the volume. - Functional.The beepers works great as a replacement piezo speaker to an old KMC alarm clock.Used these to extend an alarm to all levels of the house.As a replacement for a failed piezo motorcycle horn.Used these beepers for turn signal alarms on a motorcycle.Works well for malfunction warning on small equipment.Use them as temp and oil pressure alarms on the boat. - Easy to wire them in circuits,drive from TTL or other low voltage application.The circuit board wire bonding process is robot welding and automatic soldering.It has a beautiful appearance,no missing soldering,false soldering,and false soldering.After the wave crest,there will be no silent phenomenon due to the wire bonding problem. - The plastic shell made of high-quality ABS material is environmentally friendly,flame-retardant,anti-aging,wear-resistant,strong and durable.The upper and lower shells are all high-temperature shells,and the circuit boards,PIN pins and welding wires are all lead-free materials. Working voltage:12 V DC ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09H7RYFQ6 | | Audible Noise | 90 Decibels | | Best Sellers Rank | #17,711 in Electronics ( See Top 100 in Electronics ) #57 in Security Horns & Sirens | | Brand | HAHIYO | | Color | Black | | Control Method | Touch | | Customer Reviews | 4.1 out of 5 stars 123 Reviews | | Item Dimensions L x W x H | 1.3"L x 0.7"W x 0.6"H | | Item Weight | 0.02 Kilograms | | Manufacturer | HAHIYO | | Mfr Part Number | 2021092703-ElectronicBuzzer | | Model Number | 2021092703-ElectronicBuzzer | | Mounting Type | Wall Mount | | Power Source | DC Power | | Product Dimensions | 1.3"L x 0.7"W x 0.6"H | | Size | 34 x 17 x 15mm | | Smart Home Compatibility | Not Smart Home Compatible | | UPC | 762102405694 | | Unit Count | 2.0 Count | | Voltage | 12 Volts | ## Product Details - **Color:** Black - **Brand:** HAHIYO - **Power Source:** DC Power - **Product Dimensions:** 1.3"L x 0.7"W x 0.6"H - **Voltage:** 12 Volts ## Images ![Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - Image 1](https://m.media-amazon.com/images/I/51-O3tBIs1L.jpg) ![Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - Image 2](https://m.media-amazon.com/images/I/51dvrqJbuWL.jpg) ![Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - Image 3](https://m.media-amazon.com/images/I/51QqL6aE0JL.jpg) ![Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - Image 4](https://m.media-amazon.com/images/I/51xUrZxyizL.jpg) ![Hahiyo Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - Image 5](https://m.media-amazon.com/images/I/41qon3Yg9YL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A video for people to hear it. *by C***S on April 17, 2026* It functions, it's small and lightweight. It makes a reasonably loud buzzing sound. I think it will be plenty loud to warn me that I forgot to turn my headlights off. I may wrap it with something if it's too loud. I haven't used it yet, but if it fails sooner than it should in some way I'll update the review. I mainly left a review so I could post a video, and some photos with size reference. It's annoying to shop for noisemakers where you can't hear the sound they make. Seems like a glaring omission from the listing to not have a sound file to listen too?! ### ⭐⭐⭐⭐⭐ The dogs hear them just fine *by R***T on July 6, 2025* Like the description says, "Loud enough for the dogs to hear" (and I don't even have dogs). I bought these to make a headlight reminder because I'm tired of leaving my headlights on & draining the battery (old car). They're plenty loud enough to hear, and unpleasant enough sounding to train you to turn off the lights to avoid hearing them! ### ⭐⭐⭐⭐⭐ Loud enough without being obnoxious *by P***E on August 10, 2025* I needed an audible but not obnoxious sound to remind me that power was still on in a custom device. This filled the bill. It was a bit too loud at first but wrapping it in a few layers of cloth dialed it in. ## Frequently Bought Together - HAHIYO Electronic Buzzer Alarm 12V 400Hz Beep Continuous Sounder Active High Plenty Loud Tone Piezo Siren Security Audible Easy to Install with Wire for Horn Siren Alarm 2PCS - 2 PCS Piezo Buzzer, Icstation Buzzer Alarm 12V Electronic Beep Buzzer 100dB Piezo Alarm Siren Continous Sound for Motorcycle Golf Cart Vehicles Car Alarm - WEICHUANG 3PCS DC 3-24V 90dB Active Piezo Electronic Buzzer Beep Tone Alarm Ringer Continous Sound (Black) SFM-27-W --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/418018625-hahiyo-electronic-buzzer-alarm-12v-400hz-beep-continuous-sounder-active](https://www.desertcart.hr/products/418018625-hahiyo-electronic-buzzer-alarm-12v-400hz-beep-continuous-sounder-active) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-23*