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TPA3110 XH-A232 30W+30W 2.0 Channel Digital Stereo Audio Power Amplifier Board DC 8-26V 3A 12V 24V Reaming Board Dual Channel

ESP32 Development Board Wireless WiFi Bluetooth module Ultra-Low Power Consumption Dual Core 30Pin ESP32-32S 32D for Smart Home

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5V 9V 12V Type-C 18650 Lithium Battery Boost Step Up Module UPS Uninterruptible Power Supply Charge Discharge Same Time 1A

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DC 5V 5W Bluetooth Amplifier Board Mono Mini Audio Module Type C Connector Bluetooth Amplifier Board DC 3.7V-5V

3.7V Lithium Battery Charger 5V 1A 2A Li-ion Lipo Battery Charging Protect Two-in-one Module Micro USB Type-C Protection Board

Micro SD Storage Expansion Board Micro SD TF Card Memory Shield Module SPI For Arduino

8/4 ohm 3525 plastic inner magnetic cavity speaker 2 watt 3W full range BOX speaker speaker suitable for Arduino speaker

TP5100 charging management power supply module board TP5000 1A 2A compatible with 4.2V 8.4V single and double lithium batteries