Audio & Sound
3.5MM Audio Socket module

3.5mm Audio Socket Stereo Sound Module w/ Mic for MP3 Player – Red
The audio-style connectors that you see on some phones, MP3 players and development boards. TRRS stands for "Tip, Ring, Ring, Sleeve," which reflects the fact that, unlike a standard stereo connector, this actually has three conductors and a ground. Some devices use the extra conductor for a microphone. 

Mini Speaker 3W 4R Impedance

Maximum diameter 4CM
Magnet diameter 2.2CMz
Thickness 2CM
Category: Electric (moving coil) Purpose: PA
Shape: Round composition: single type
Rated power: 3 (W) Rated impedance: 4 (Ω)
Frequency response: 170 (kHz) Directivity: Omni
Sensitivity: 100 (dB / W)-noise ratio: 1 (dB)
Harmonic distortion: 1 (TMD%)

1710 Dia 17mm Passive Piezo Buzzer

Rated voltage:12V
Operating voltage:1-30V
Rated current(maz):2mA
Mini sound output at 10cm:80dB
Resonant Frequency:4000+or-500HZ
Housting material:ABS


MAX9812 Based Microphone Sound Amplifier Module

Description: Professional Microphone amplification IC, low output noise, small size, high sensitivity, fixed gain 20dB, support 3.3v and 5v two power supply. 
Voltage: 3-5V
OUT Output: The default output analog signals.
Size: 15mm * 9mm


TDA2030 Linear Audio 18 W hi-fi amplifier and 35 W driver

Category:    Integrated Circuits (ICs)
Family:    Linear - Amplifiers - Audio
Packaging      Tube  
Type:    Class AB
Output Type:    1-Channel (Mono)


ax Output Power x Channels @ Load:    18W x 1 @ 4 Ohm
Voltage - Supply:    12 V ~ 44 V, ±6 V ~ 22 V
Features:    Short-Circuit and Thermal Protection
Mounting Type:    Through Hole
Operating Temperature:    -40°C ~ 150°C (TJ)
Supplier Device Package:    5-PENTAWATT
Package / Case:    Pentawatt-5 (Vertical, Bent and Staggered Leads)


LM386 LM386N DIP-8 Audio Power AMPLIFIER IC