COSMIC-115 / AT115 Bluetooth Audio Amplifier Board with Inbuilt Mic, Type-C Charging, USB, AUX & FM Support | DIY Speaker Module

COSMIC-115 / AT115 Bluetooth Audio Amplifier Board with Inbuilt Mic, Type-C Charging, USB, AUX & FM Support | DIY Speaker Module Upgrade your DIY audio projects with the COSMIC-115 / AT115 Bluetooth Audio Amplifier Board �� — a compact, multi-functional audio solution designed for modern wireless and wired connectivity. This board comes with Bluetooth, USB playback, AUX input, FM antenna support, and inbuilt microphone, making it a complete audio control module for speaker systems, repair work, and custom builds. Designed with Type-C power input and multiple interface ports, it ensures stable performance, easy installation, and professional results. ✨ Key Features & Highlights �� Wireless Bluetooth AudioSeamlessly connect smartphones, laptops, and tablets. �� Inbuilt MicrophoneSupports hands-free calling and voice input. ⚡ Type-C Power InputFast, stable, and modern power solution. �� Multiple Input Options USB Port (Music Playback) AUX (3.5mm Audio Input) FM Antenna Support �� �� Onboard Control Buttons Volume / – Mode Selection Play / Pause �� Speaker Output Terminal (SP / SP-)Easy connection for speaker units. �� Battery Connection Support (BAT / BAT-)Perfect for portable speaker projects. �� Compact PCB DesignEasy to fit inside speaker cabinets and DIY enclosures. �� Ports & Connector Details (From Image Analysis) �� USB Port – For pendrive audio playback ⚡ Type-C Port – Power input / charging �� 3.5mm AUX Jack – Wired audio input �� Mic Input Jack – External microphone option �� FM_ANT Terminal – FM antenna connection �� Speaker Output Pins (SP , SP-) �� Battery Pins (BAT , BAT-) �� VDD / GND / RGB Pins – Power & LED interface �� Technical Specifications Feature Details Model COSMIC-115 / AT115 Connectivity Bluetooth USB AUX FM Microphone Inbuilt External Mic Support Power Input Type-C (5V DC) Audio Output Stereo Speaker Output USB Support Yes (Pendrive Audio Playback) FM Support Yes (FM Antenna Required) Battery Support Yes (BAT / BAT-) Control Buttons Volume, Mode, Play/Pause Installation Type DIY PCB Board Build Quality Premium PCB with SMD Components �� Applications / Uses �� DIY Bluetooth Speaker Box �� Portable Speaker System �� LED TV / Audio Repair Projects �� FM Radio Speaker Build �� Car Audio DIY Upgrade �� Electronics Learning & Training �� Home Audio System Modification �� Why This Board is Special? ✅ All-in-one audio solution (Bluetooth USB AUX FM) ✅ Type-C support (latest standard ��) ✅ Battery Speaker direct connection ✅ Ready-to-use control buttons ✅ Compact & technician-friendly design �� Package Includes 1 × COSMIC-115 / AT115 Bluetooth Audio Amplifier Board ⚠️ Important Notes �� Power supply must be stable (5V recommended) �� Proper speaker matching required for best output �� FM requires external antenna for better signal