The ID:CORE V4 Stereo 40 is a 40W amplifier producing diverse tones, with 12 built-in Super Wide Stereo effects. It has patented ISF control for tonal flexibility and built-in tuner. Special features include direct USB recording capacity, USB-C connectivity, and power reduction ability. Live streaming and video recording are made effortless with direct-to-phone TRRS audio, supporting seamless content creation.