BestTong 18650 Battery Clip Holder Box Case for 18650 Battery Copper Contacts Battery Storage Box Case Holder 1 Cell Pack of 2

BestTong 18650 Battery Case Holder, 2 Slots 3.7V DIY Battery Storage Box in Parallel or Series Plastic Batteries Case with Clips Pins Contacts for Soldering 2 x 18650 Pack of 2

MakerFocus 10pcs TP4056 Charging Module with Battery Protection 18650 BMS 5V Micro USB 1A 186 50 Lithium Battery Charging Board

uxcell a15080600ux0275 Metal Shell Round Internal Magnet Speaker 2W 8 Ohm Pack of 4

BTF-LIGHTING WS2812B 144 LEDs/Pixels/m Individual Addressable Full Color led Pixel Strip Dream Color Non-Waterproof 3.2FT 1m

HiLetgo 10pcs 18650 Battery Clip 18650 Battery Holder 18650 Batteries Case for 18650 Battery with Connect Lead Arduino Raspberry Pi

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

McIgIcM 5pcs Micro USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board with Protection Dual Functions 1A Li-ion

MakerFocus 6pcs 2A 5V Charge Discharge Integrated Module 3.7V 4.2V for 186 50 Lithium Battery Charging Boost Mobile Power Protection PCB Board Module

Adafruit Trinket M0 - for use with CircuitPython & Arduino IDE

PJRC Teensy 4.0 (Without pins)