Salcon Electronics 100 W Stereo Audio Amplifier Kit Board, 4440 IC DIY Audio, Assembled (with Bluetooth Module) Size name:With Bluetooth Module   Product Description Double IC 4440 Stereo Amplifier board, High Power up to 100 Watt output( depends on Input supply power, min requirement is 2 amp. Recommended 3 Amp. The best part about the kit is that it is made of individual components, which means if any thing goes wrong it can be easily serviced and components can be replaced. Also all the powersupply components are built in, Simply need to add a transformer and it will work. 4440 is a two channel audio power amplifier IC with inbuilt in dual channels enables it for stereo and bridge amplifier applications. Comes with pre integrated Volume, Bass and Terrible controller. Input Supply : 12 v - 16 v. 3 Amp (12-0 transformer or car battery ) Ready to use. Input sound : two channel stereo Output sound : two channel stereo --------------------------------------------------------------- --------------------------------------------------------------- Features: Bluetooth Support USB,TF card Support MP3 Song number display Song selection mode Forward and backward selection With audio With IR remote control With the LINE input (AUX) With led display Support FM radio FM Channels 87.5 - 108 MHz Auto channel scan and save provision Support 5v voltage PCB size;75*20mm Panel size;106*25mm DC Input;5V External Antenna connection for FM LCD screen Displays audio File information & Frequency Dancing LED ( not depends on audio level ) Digital volume level display Volume Up /down buttons