This CT14 Bluetooth 4.2 mini stereo power amplifier board is a high-performance, ultra-compact audio module designed for DIY wireless speaker projects. It features an integrated Bluetooth receiver alongside an onboard dual-channel amplifier delivering 5W+5W stereo output, making it ideal for driving small 2Ω–8Ω speakers. The board is powered conveniently via a 5V Micro-USB port or a 3.7V lithium battery connection. With its built-in PCB trace antenna for stable wireless transmission and pre-configured SMD components, this lightweight module offers a plug-and-play solution for modifying old speakers, building portable sound systems, and creating custom wireless audio applications.
