KNACRO 3W+3W Wireless Bluetooth 4.0 Audio Receiver Steady Digital Amplifier Board

WINGONEER Micro USB DC 5V 2x3W Bluetooth Audio Receiver Digital Amplifier Board Module Bluetooth Audio Receiver Amplifier board

DROK Portable Wireless Bluetooth Audio Receiver Board, Support TF Card USB Decording Play, Bluetooth Stereo Music Transmitter Module for Headphones HIFI Amplifier

KNACRO 3W+3W Wireless Bluetooth 4.0 Audio Receiver Steady Digital Amplifier Board

Icstation Bluetooth 4.2 Stereo Audio Receiver Board Amplifier 2x5W Mini Amp Module 3.7-5V for Portable Wireless Speaker DIY

XCSOURCE 5 pcs 1A 5V Micro USB TP4056 Lithium Battery Power Charger Board Module TE420

CQRobot Arduino Speaker 3 Watt 8 Ohm, JST-PH2.0 Interface. It is Ideal for a Variety of Small Electronic Projects.

DSD TECH HC-06 Wireless Bluetooth Serial Transceiver Support Module Slave and Master Mode For Arduino + 4PIN DuPont Cable

Makerfocus 10pcs TP4056 Charging Module 5V Micro USB 1A 18650 Lithium Battery Charging Board with Protection Charger Module

MagiDeal 10pcs Female MICRO USB to DIP 5-Pin Pinboard 2.54mm micro USB type

Icstation MT3608 Mico USB DC Voltage Regulator, Step Up Boost Converter, Power Supply Module, 2V-24V to 5V-28V 2A (Pack of 4)