High/Low 100W audio signal converter

MP3 panel for installation in the audio device. It allows you to play files in MP3 format from a USB memory or a microSD card. It has a built-in 3.5mm Jack connector with an audio output

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. BOB-12758

Set with six microphones designed for audio applications for Raspberry Pi minicomputers. It consists of a board with microphones and a module with audio circuits. Seeed Studio 107990055

Set for speech recognition compatible with Arduino. It consists of the Base Shield V2 expansion module, the voice command recognition module, the audio module and the necessary accessories. Seeed Studio 110020108

A volume sensor designed to detect loud ambient sounds. The module uses a microphone and LM2904 amplifier. The output value (analog signal) depends on the volume of the detected sound. In order to eliminate interference, the microphone signal is subjected to double filtering. Seeed studio 101020063

A set with a vibration generator designed to transfer sounds through the human skeleton to the auditory center. DFRobot KIT0126

Audio module designed for Teensy 4.0 and 4.1. It uses the SGTL500 audio codec chip with I2S interface, it can work with a microSD card or SPI Flash memory. Audio Adapter Boards for Teensy 4.x (Rev D)

Three-way crossover with a crossover frequency of 900 Hz and 5000 Hz. It works with speakers with an impedance of 5 to 8 Ω and offers power up to 150 W

A module with an electret microphone and an amplifier that will allow you to detect a voice, a clap or a door slam using the analog output

Class D LTK5128 mono digital audio amplifier module. The system allows you to connect one loudspeaker with an impedance from 4 to 8 Ω and a power of 5 W

Audio signal converter converting a digital Coaxial or Toslink signal to an analog signal output on RCA connectors. Powered by 5V

Class D digital audio amplifier. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 11 to 26 V

Module with audio amplifier and 8 Ω speaker with a power of 1 W. The board is equipped with a STEMMA connector. Adafruit 3885

Stereo audio amplifier with Bluetooth communication. It can be powered with the voltage from 8 to 26 V and has two outputs with a power of 50 W. The set includes a remote control

Module containing TSH82 operational amplifier from STMicroelectronics. The system has two built-in amplifiers and each of them is available separately on the pins of the board as inverting amplifiers. Sparkfun BOB-14874

Module with a multi-channel WAV player. It allows you to mix 32 mono or 18 stereo tracks with the ability to connect to any MIDI controller. It has 8 mono or 4 stereo audio outputs. SparkFun WIG-18159