COSMIC-104 / AT104 Mini amplifier Circuit Borad With Type – C Charging port 12watt 3-5V Dc Build In Bluetooth,FM,AUX,TF

Upgrade your DIY speaker or repair project with the COSMIC-104 / AT104 Mini Amplifier Board — a compact yet powerful 12W audio solution designed for portable speakers, home audio systems, and electronics hobby projects.

This all-in-one amplifier module features Bluetooth, FM Radio, AUX input, TF card slot, and modern Type-C charging, making it perfect for modern audio builds.

🌟 Key Features & Benefits

🔋 Type-C Charging Port

• Modern USB Type-C charging interface
• Easy charging with any standard mobile charger
• Safer and more stable power input

🔊 12W High-Quality Sound Output

• Delivers clear and powerful 12W audio output
• Suitable for small to medium speaker builds
• Clean sound with low distortion

📡 Built-In Bluetooth

• Wireless audio streaming from mobile, laptop, or tablet
• Stable connection and easy pairing
• Ideal for DIY Bluetooth speaker projects

📻 FM Radio Support

• Inbuilt FM function for standalone radio playback
• No need for extra FM module

🎵 Multiple Input Options

• AUX input for wired connection
• TF (Micro SD) card slot for direct MP3 playback
• Supports common audio formats

⚡ Low Voltage Operation (3V-5V DC)

• Works on 3V to 5V DC supply
• Compatible with lithium batteries
• Perfect for portable applications

🛠 Compact & DIY Friendly Design

• Small size PCB
• Easy to install in custom speaker cabinets
• Best for electronics students & technicians

📊 Technical Specifications Table