Need some beeps for your project? This is a pack of 20 passive electromagnetic buzzer speakers - perfect for alarms, timers, notifications, or any electronics project that needs an audible alert. Each buzzer is about 12mm in diameter by 8.5mm tall (that's roughly 0.47 x 0.33 inches). They have an impedance of 42 ohms and operate at a frequency of 2048Hz, which gives a clear, attention-getting tone. These are \passive\ buzzers, meaning they need an oscillating signal to make sound (unlike \active\ ones that just need DC power). They're universal, so they'll work with Arduino, Raspberry Pi, breadboards, or any circuit where you need a simple sound output. They're unbranded/generic but come brand new in packaging. At 20 pieces, you get plenty for prototyping or building multiple devices. These are super common in DIY electronics because they're cheap, reliable, and easy to use. Just hook up two wires, send the right signal, and you get a beep! Great for beginner projects or even replacing buzzers in existing equipment. The sound isn't super loud, but it's perfect for close-range alerts. If you're into making gadgets, robots, or alarms, having a stash of these buzzers in your parts bin is always handy. They're small, so they fit almost anywhere!
Free 30-day returns 
Free 30-day returns
