TDA7297 digital power amplifier board double-track noise-free 12V finished 9V/15V/12V double 15W power amplifier board
$1.50 - $1.70/piece
1 piece(min.Order)
L7805 LM7805 three-terminal regulator module 5V regulator module 5V regulator power supply module
$0.60 - $0.70/piece
HM -10 transparent serial port Bluetooth 4.0 module Bluetooth serial port with logic level conversion/anti-feedback
$2.00 - $3.00/piece
2 series/3 Series/4 series 1-4A Boost Module Lithium polymer lithium ion battery charging module 3v-6v
$0.20 - $0.25/piece