Audible Devices

ABRA stocks buzzers, microphones, microphone elements, speakers and transducers for industry and educational institutions.

 

Piezo Buzzer 

Voltage: 4 - 20 volts
DC Color: Black
Dim.: 7/8" x 11/16" high

 Audio Transducer

7½ wire attached
.8mm x 12mm
DC Res.: 45 Ohms
Opt. Freq: 2500 Hz

       Piezo Buzzer

8-15 VDC,
w/ internal driver. 
Current: 30mA
Sound output: 85db @
10cm Frequency: 2KHz

   2.25" Speaker

Ideal for hobbyists
& students. 2 1/4"
Miniature Speaker
0.5W 8Ω

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US$9.79
This Microphone module is designed to work with any Raspberry Pi device running linux operating system. Great for creating voice recognition software or it can be also used on any windows operating system without the need of installing additional drivers (exception on windows 10). Since it is USB based, you don’t need to use your microphone jack and a usb port to power the unit. This Mic only needs one USB port for power and signal making it a great recommendation for RPI devices.
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US$10.22
This small breakout board couples an Electret microphone (100Hz–10kHz) with a 60x mic preamplifier to amplify the sounds of voice, claps, door knocks or any sounds loud enough to be picked up by a microcontroller’s analog-to-digital converter. Each breakout comes fully assembled and works from 2.7V up to 5.5V.
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US$0.97
This passive buzzer will produce audio only when a AC signal is supplied to the device. When you apply a DC voltage, the buzzer will not generate a tone since it will require a sinusoidal wave. You can achieve this buy supply either a sine wave from a function generator or create PWM waves using a microcontroller or 555 timer. If you are looking for buzzers that make noise when a DC signal is supplied we highly recommend looking for active buzzers.
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US$1.48
This 12mm diameter buzzer operates at 5V and is an excellent sound alarm for microprocessor projects.
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US$2.09
This electromagnetic transducer is a compact way to add sound to your embedded project: just supply it with a PWM signal at 3 V to 7 V and it will produce sound at the frequency of the supplied signal from an opening on the side.
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US$1.90
That's one tiny microphone! At about the size of a mature aphid, this wired Electret Microphone is perfect for your FONA. Diameter: 4.4mm. Wire Length: 67mm. Weight: .17g.
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US$30.63
Turn any surface/wall/table etc into a speaker with a surface transducer. This type of speaker does not have a moving cone like most speakers you've seen. Instead, a metal rod is wrapped with the voice coil.
Delivery within 2-3 weeks
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US$2.53
This 1.5" diameter speaker cone is the perfect addition to any audio project where you need an 8Ω impedance and are using 0.25W or less of power. We particularly like this cone as it's very simple and its plastic body is extremely lightweight and thin.
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US$2.88
This tiny 1" diameter speaker cone is the perfect addition to any small audio project where you need an 8 Ω impedance and will be using 0.5W or less of power. We particularly like this cone as it's very simple and its metal body is extremely lightweight.
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US$23.45
This high power 4" diameter speaker will amp up any audio project where you need loud sound! It is 4 ohm impedance, rated for 20W continuous power. (This thing is really loud) It also has four handy mounting tabs 3 inches apart, and a grill that fits on top. The grill is to protect the cones, and is not necessary for use. 
Delivery within 2-3 weeks
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US$2.03
This large (30mm diameter) piezo element is nicely enclosed with mounting holes so you can attach easily. Piezo elements convert vibration to voltage or voltage to vibration. 
Delivery within 2-3 weeks
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US$13.13
This is the perfect addition to any audio project where you need 4 ohm impedance and 3W or less of power. This is a set of two 2.8" x 1.2" speakers. We particularly like these speakers as they are small and enclosed for good audio volume and quality.
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US$3.15
This is an electronic module which can be assembled like Lego bricks simply by plugging in and pulling out.
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US$2.27
The piezoelectric ceramic buzzer has a simple structure in which a ceramic piezo-element is glued to a vibration plate.
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US$8.33

Specifications: ABS. Wired siren. Operating voltage: 6-15Vdc. Current consumption (at 12Vdc with siren): 200mA. Oscillating frequency: 1.5-3.5kHz. Sound pressure level (at 1m): 107dBA. Dimensions: 1.5" x 1.7" x 2.2". Mounting holes: 0.87".

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