🌍 Worldwide shipping · 30-day returns · Rated Excellent on Trustpilot ★★★★½
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$7.51
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SirensHARY✓ In stock

HARY 20PCS Piezo Buzzers for Quizzes 12085 leads, 3-12V 85dB Electronic Buzzer Alarm with 30mm Cables for Circuit Projects, School Competitions & DIY Kits

$7.51
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About this item
  • Loud & Clear 85dB Sound : These piezo buzzers deliver sharp, 85dB alerts perfect for classroom competitions, game shows, and team quizzes. The consistent tone ensures fair play, with sound that cuts through room noise.
  • Flexible Power Options : Works with AA/AAA batteries (3V), 9V blocks, or 12V adapters, making these quiz buzzers versatile for:✓ School science fairs✓ DIY quiz boards✓ Educational STEM kits
  • Durable ABS Housing : The compact ABS plastic casing resists drops and wear, surviving repeated classroom use. Each buzzer measures just Φ11mm × 9mm—stackable and portable.
  • Pre-Wired with Cables : Each buzzer comes pre-attached with 30mm wires, ready to plug into breadboards or clip to batteries. No soldering needed—ideal for quick quiz game setups or student electronics projects.
  • 20-Piece Set : Includes 20 identical buzzers (enough for 5 teams of 4), ensuring fair competition formats. Great for:✔ Trivia nights✔ School quiz bowls✔ DIY reaction-time games
Product description

HARY 20PCS Quiz Buzzers - 3-12V Piezo Buzzer Set for Classroom Games Key Features: 85dB Loud Sound - Clear tone for competitions 3-12V Compatible - Works with batteries/adapters 30mm Pre-Wired - No soldering needed Classroom Ready - Perfect for quiz games 20-Piece Set - For teams or multiple projects Specs: Voltage: 3-12V DC Sound: 85dB @ 2.8KHz Size: Φ11mm×9mm Cable: 50mm wires Includes: 20x buzzers (ready to use) Make learning fun with interactive quizzes! Ideal For: School competitions DIY electronics Science fair projects

Product details
Brand
HARY
Manufacturer
HARY
Colour
Black
Part number
PG2918-01

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
Excellent
4.5 average rating
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S
Sigalit
🇮🇱 · January 2026

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇦🇺 · November 2025

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 12 of 10 reviews

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