Yamaha THR5A Portable Combo Guitar Amplifier Features: An amazing portable acoustic guitar amp - ideal for practicing, songwriting, and recording Impeccable simulations of dynamic and classic tube condenser mics along with studio-grade effects Yamaha's Virtual Circuitry Modeling (VCM) technology delivers extremely realistic sound and feel Runs on supplied AC adapter or 8 AA batteries for up to 6 hours of continuous playing time Auxiliary 1/8" input lets you play back audio via your personal music player USB connection provides 2 channels of recording/playback to and from your computer Dual 3.15" speakers provide stereo audio for internal effects and auxiliary/computer audio playback Free (downloadable) THR Editor software lets you tweak additional parameters Includes Steinberg's Cubase AI recording software