Audio Amplifier module
Non-Destructive MP3 Decoding Board with Self-Powered TF Card U Disk Decoded Player Module
$0.97
Price range: $0.44 through $1.00
This product has multiple variants. The options may be chosen on the product page 
Measuring Instruments
$0.22
Development Boards
PIC K150 USB Automatic Develop Microcontroller Programmer with ICSP Cable (Body width: 4 mm)
$6.77
Development Boards
PIC K150 USB Automatic Develop Microcontroller Programmer with ICSP Cable (Body width: 4 mm)
$4.65
Audio Amplifier module
VS1053 MP3 Recording Module Development Board with Onboard Recording Function
$6.23
$2.38