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12mm SMD Passive Buzzer
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Price: $2.12
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Elecrow Item #: EL-AS0012PBU -

        A good quality passive buzzer that was used in one of Elecrow projects, with Oscillation frequency 4K Hz.     

3W mini audio stereo amplifier
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Price: $16.80
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DFRobot Item #: DFR0119 -

This is a mini stereo amplifier. It is a fully functional, two-channel audio amplifier, with an integrated sleep mode function. You can disable it on your sketch if you are not using it or not needed by connecting the sleep pin on your board. It&;lsquo;s specially good for some DIY project.|Specification| Power Supply: DC 3.6-5.5V (DO NOT apply over 5.5V, it damage the chip presently) Output power: 3w+3w (4 ohms) Efficiency: &;gt;90% Size: 15.5*24mm (0.6*0.94&;#39;&;#39;)|Documents| Wiki Doc...

4 RCA Socket Audio Input Adapter Board Kit
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Price: $2.65
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Elecrow Item #: EL-CTD01513K -

The RCA adapter is white and the pitch of each is 2.54mm. The design of the RAC adapter is positive and negative welding compatible 3-position jack, and can be adjusted according to the left and right channels. You can use the RCA adapter on your DIY loudspeakers to increase input and output interfaces.   Features The welding method of the socket is well compatible, it can be adjusted according to the left and right channels. Can be used as a DIY Amplifier. Specifications Cable length:...

Audio Amplifier 3W PAM840
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Price: $4.24
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Elecrow Item #: EL-ASAA840PA -

    This is a Super mini digital amplifier board, ultra-thin, can be very convenient to place in the gap of small plastic boxes or other devices. It can obtain maximum power output at a lower voltage. It also has built-in standby electronic switch, high-gain buffer amplifier, short circuit protection, which make this module perfect for MP3/MP4/notebook. Specification New efficient digital amplifier chip Special internal output processing circuit Eliminating the conventional LC...

Audio Amplifier PAM8403 with Colume Control
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Price: $3.18
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Elecrow Item #: EL-ASAA8403P -

     The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high quality sound reproduction. The new filter less architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus to save the system cost and PCB area.      With the same numbers of external components, the efficiency of the PAM8403 is much better than that of class-AB cousins. It can extend the battery life, ideal...

Buzzer Module
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Price: $2.52
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Elecrow Item #: EL-SLS01010S -

    This buzzer module is simple to use. Just Connect the "I/O" pin of the module to the digital outputs of Arduino, it will emit a tone when the output is high.Of cause it can be connected to an analog pulse-width modulation output to generate various tones and effects. Wiki & External links Schematic ...

JustBoom Amp HAT
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Price: $140.64
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Sparkfun Item #: DEV-14318 -

"The JustBoom Amp HAT is a high-quality audio amplifier designed specifically for the Raspberry Pi. Digital-to-analog conversion is also included with the Amp HAT, so no external sound cards or DACs are required. Simply stack the plug-and-play add-on board (HAT) onto your Raspberry Pi A+, B+, 2B or the new 3B, and it will be ready to use immediately. JustBoom designed the Amp HAT to be simple to install and use. With no soldering required and all the mounting hardware already provided, this...

JustBoom DAC HAT
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Price: $70.32
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Sparkfun Item #: DEV-14319 -

"The JustBoom DAC HAT is a plug-and-play, high-resolution, digital-to-analog converter for the Raspberry Pi. Simply stack the plug-and-play add-on board (HAT) onto your Raspberry Pi A+, B+, 2B or the new 3B, and it will be ready to use immediately. JustBoom designed the Raspberry Pi DAC HAT to be simple to install and use. With no soldering required and all the mounting hardware already provided, this HAT is suitable for both beginners and seasoned professionals alike. Just connect your...

JustBoom Digi HAT
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Price: $70.32
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Sparkfun Item #: DEV-14317 -

"The JustBoom Digi HAT is a high-resolution digital audio output add-on board for the Raspberry Pi. Simply stack the plug-and-play add-on board (HAT) onto your Raspberry Pi A+, B+, 2B or the new 3B, and it will be ready to use immediately. The JustBoom Digi HAT produces an unmodified, high-quality digital audio data stream for bit-perfect transmission to your hi-fi system. JustBoom designed the Digi HAT to be simple to install and use. With no soldering required and all the mounting hardware...

LM386 Audio Amplifier Module
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Price: $1.99
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Elecrow Item #: EL-CAS00508A -

If you want to add audio capabilities to your new project, you could choose the LM386 audio amplifier. It is a high gain audio amplifier based on the LM386 integrated circuit, and it�s designed for use in low voltage consumer applications. The gain will increase to any value from 20 to 200 when you put an external resistor and capacitor between pins 1 and 8. This module can be used on intercoms, AM-FM radio amplifiers, and other sound system. Features Low distortion. On-board trimmer for...

PAM8610 15W*2 Dual Channel 12V Digital Audio Amplifier Module
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Price: $9.93
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Elecrow Item #: EL-ATS10925A -

A new efficient digital power amplifier, the PAM8610 is a 15W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high quality sound reproduction. The new filter less architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus to save the system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8610 is much better than that of class-AB. It can extend the battery life, ideal for portable...

ReSpeaker 4-Mic Array for Raspberry Pi
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Price: $42.21
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Sparkfun Item #: DEV-14645 -

"The ReSpeaker 4-Mic Array is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications. With the ReSpeaker, you will be able to build a more powerful and flexible voice project with your Raspberry Pi that integrates Amazon Alexa Voice Service, Google Assistant, and more! The ReSpeaker is developed based on the AC108 IC, a highly integrated quad-channel ADC with I2S/TDM output transition for high definition voice capture. This HAT is also equipped with LED ring,...

SMT Audio Jack - Full Copper
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Price: $0.36
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Elecrow Item #: EL-CCO10001C -

    This is a kind of standard 1/4" SMT stereo jack with full copper, it can give you very nice voice.

TDA7297 Audio Amplifier Module
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Price: $13.67
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Elecrow Item #: EL-ATD7297AA -

    How to make your speaker more louder or DIY computer speaker? This TDA7297 Audio Amplifier module is just right one for you. This audio amplifier board has no current impact sound when booting, low static noise, and a high quality sound: treble delicate, soft, transparent, no harsh; bass strong, full, strong, and acting freely.     The amplifier has been equipped with a heat sink to solve the heat problem, and there is also potentiometer to adjust...