![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/04\/4-RATON-.jpg\" "\\"RATONES\\"")
<\/span><\/div>![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/03\/CUCARACHAS.jpg\" "\\"CUCARACHAS\\"")
<\/span><\/div><\/div><\/div><\/div>Advanced ultrasound to repel mice and roaches<\/p><\/h3><\/div>
The Portable Diamond Bell\u00ae DB-03B Repellent is a practical and safe solution for repelling mice and cockroaches anywhere. This compact and chemical-free device is ideal for taking to any space and keeping it protected from pests.<\/p>\n
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- DB Ultrasound Technology:<\/strong> Effective against mice and cockroaches, creates a hostile environment for these pests without chemicals.<\/li>\n
- Silent and discreet:<\/strong> Does not emit sounds or odors, suitable for rest.<\/li>\n
- Cost-effective<\/strong>: No need for replacements, with an estimated lifespan of 10 years.<\/li>\n
- Wide coverage:<\/strong> Ideal for small rooms, offices, cars and other reduced spaces. Protects areas of up to 25 m\u00b2 (269 sq ft).<\/li>\n
- Easy to use:<\/strong> Just turn it on and it starts working immediately.<\/li>\n
- Connector type:<\/strong> Battery-powered, 4 x 1.5 V Type AAA.<\/li>\n
- Designed and Manufactured in Spain.<\/strong><\/li>\n<\/ul>\n<\/div><\/div><\/div><\/div><\/div>
EFFICIENT AND SILENT ELECTRONIC PROTECTION<\/p><\/h3><\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/11\/DB-02B-i-DB-03B.jpeg\" "\\"DB-02B")
<\/span><\/div>Worried about your children’s rest?<\/h3><\/div>
Make sure your family rests away from annoying invaders that carry infections and diseases such as mice and roaches. This portable device protects any room, allowing for a peaceful and uninterrupted rest.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/11\/DB-02B-bullet2.jpg\" "\\"DB-02B-bullet2\\"")
<\/span><\/div>Attractive and portable design for your home and outdoors<\/h3><\/div>
Thanks to its compact and portable design, you can take the DB-03B anywhere. Say goodbye to mice and roaches even where there\u2019s no power outlet.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/11\/DB-02B-i-DB-03B-cocina.jpeg\" "\\"DB-02B")
<\/span><\/div>Register product<\/h3><\/div>
This device is ideal for protecting sensitive areas such as kitchens, pantries, or any space where you need effective and portable control against mice and Roaches.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/04\/destacado-techo.jpg\")
<\/span><\/div>Effective protection without plugs<\/h3><\/div>
Ideal for drop ceilings and basements without outlets, providing a protective barrier for your home.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/11\/DB-03B-bullet4.jpg\" "\\"DB-03B-bullet4\\"")
<\/span><\/div>Ultrasonic technology always with you<\/h3><\/div>
With our DB ultrasonic technology, make sure to protect false ceilings, basements, and garages, creating an entry barrier and protection for your home.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.thediamondbell.com\/wp-content\/uploads\/2025\/11\/DB-03B-bullet5.jpg\" "\\"DB-03B-bullet5\\"")
<\/span><\/div>Protect your car from mice<\/h3><\/div>
Place the device in the engine bay or garage to prevent damage to your vehicle’s wiring.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
<\/i><\/i><\/span>SPECIFICATIONS<\/span><\/a><\/h4><\/div>
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Model: <\/b>Diamond Bell\u00ae DB-03B<\/p>\n<\/li>\n
- Coverage:<\/b> Up to 25 m\u00b2 (269 sq ft)<\/li>\n
- Technology:<\/b> DB ultrasonic specifically for mice and cockroaches<\/li>\n
- Battery consumption: <\/b>6 months (24 h\/day)<\/li>\n
- Certification: <\/b>EPA Est. No. 104469-ESP-1<\/li>\n
- Estimated lifespan:<\/b> 10 years<\/li>\n
- Dimensions:<\/b> Compact and easy to carry, 50 \u00d7 50 \u00d7 28 mm<\/li>\n<\/ul>\n
- \n<\/ul>\n<\/div><\/div><\/div>
<\/i><\/i><\/span>MORE INFORMATION<\/span><\/a><\/h4><\/div>
\nThe Portable Repeller Diamond Bell\u00ae DB-03B is an effective solution for keeping spaces free of mice and Roaches. Designed for continuous use, this device emits adjustable ultrasounds that affect the nervous system of these pests, driving them away from the protected area. It is a safe, chemical-free option, ideal for homes with children and pets, as it does not use toxins or emit odors.<\/p>\n
The DB ultrasonic technology affects Roaches and rodents by generating high-frequency sound waves, imperceptible to humans, that interfere with their sensory and communication systems:<\/p>\n
The ultrasounds disorient Roaches, altering their ability to navigate and communicate, making it difficult for them to adapt to the environment. This drives them to leave the treated area.<\/p>\n
Additionally, ultrasonic frequencies generate stress and discomfort in rodents, affecting their natural behavior and forcing them to seek a quieter place to hide.<\/p>\n
In both cases, the ultrasounds create a hostile environment, significantly reducing the presence of these pests without using chemicals.<\/p>\n<\/div><\/div><\/div>
<\/i><\/i><\/span>FREQUENTLY ASKED QUESTIONS<\/span><\/a><\/h4><\/div>
\nCan the DB Ultrasonic Technology of this Anti Mice and Roaches device affect: babies, pregnant women, children, or adults?<\/strong>
No, the technologies used in Diamond Bell products do not cause any harm to people or animals.<\/p>\nIs it safe for pets?<\/strong>
Yes, the device is safe for pets and people, as it does not use chemical products or emit odors. The DB-03B electronic repeller is designed to be highly effective against rodents. However, if you have rodents as pets at home (such as hamsters or guinea pigs), it is recommended not to place them in the same area of action as the device, as the ultrasonic frequencies may cause stress and discomfort.<\/p>\nDoes it work with any type of Roaches?<\/strong>
Its effectiveness has been tested with German Roaches (Blatella germanica) and American Roaches (Periplaneta americana), which are the most common and resilient species.<\/p>\nDoes it work with any type of rodents?<\/strong>
It is designed to affect mice of the most common species (Mus musculus), although it can affect all types of rodents.<\/p>\nWhat is its lifespan?<\/strong>
Its lifespan is unlimited.<\/p>\nDoes it require refills?<\/strong>
No refills are needed, which represents significant economic savings. You only need to replace the batteries when the LED light no longer turns on.<\/p>\nHow long does the battery last?<\/strong>
The batteries last approximately 6 months (24 h\/day). You only need new batteries when the LED stops lighting up.<\/p>\nIs it effective for large areas?<\/strong>
This model is ideal for areas up to 25 m\u00b2. For larger spaces, it is recommended to use multiple devices.<\/p>\nCan I place other Diamond Bell\u00ae models in the same room?<\/strong>
Yes, our products are fully compatible.<\/p>\nHow long does it take to take effect?<\/strong>
The best results are obtained within 1 to 3 weeks, as mice and Roaches, although stunned from the first moment, initially resist leaving.<\/p>\nWhy do I see more Roaches at the beginning of using the anti-mice\/Roaches device?<\/strong>
It may happen that in the first days the hidden Roaches come to the surface. This step indicates that they are leaving the home.<\/p>\nThe Roaches aren\u2019t leaving<\/strong>
Keep in mind that among different Roach species, German Roaches are the most resistant, and their removal may take longer than usual.<\/p>\nDoes it work outdoors?<\/strong>
The device is ideal for indoors and enclosed spaces, where the ultrasound can be more effective.<\/p>\nCan I combine it with the use of poisons?<\/strong>
It is not advisable to use them simultaneously, as poisons attract while the anti-mice\/Roaches repels, making their effects opposite.<\/p>\nWhat should I do if the LED indicator does not work?<\/strong>
Insert new batteries into the device, and if the LED still does not light up, contact the Diamond Bell Technical Support team.<\/p>\n<\/div><\/div><\/div> - Coverage:<\/b> Up to 25 m\u00b2 (269 sq ft)<\/li>\n
- Silent and discreet:<\/strong> Does not emit sounds or odors, suitable for rest.<\/li>\n
![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/5anos.png\")
Gets 5 years warranty<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/sello.png\")
Proven technology since 1990<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/cobertura.png\")
Coverage up to 25 m2<\/sup> (269 sq ft)<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/uso.png\")
For indoor use in homes, stores, offices, etc.<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/bateria.png\")
Power: 4 x AAA (not included)<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/tecnologia.png\")
DB Ultrasonic Technology protects you from mice and Roaches<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/seguridad.png\")
Practical, safe, silent, and odorless<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/inofensivo.png\")
Harmless to animals and people (Suitable for Babies from 0+ years).<\/td>\n<\/tr>\n![\"\"](\"https:\/\/thediamondbell.com\/wp-content\/uploads\/2025\/04\/sinquimicos.png\")
Chemical-free – 100% electronic, no refills, only battery replacement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":582,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_joinchat":[]},"product_brand":[],"product_cat":[42,37],"product_tag":[],"class_list":{"0":"post-796","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-mice","7":"product_cat-roaches","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"acf":[],"yoast_head":"\n