Features 5 Amp Types to Select From, Clean, Crunch, Lead, Brit Hi, Modern, Additional Bass, Aco, Flat Settings, Built-in Effects, Save 5 Amp Settings with User Memory, Dual 3" Speakers for Total 10 W Output, Battery or AC Powered, Includes Cubase AI Recording Software, Compatible with THR Editor Software, Built-in Tuner. The Yamaha THR10 10 Watt Guitar Amplifier is a portable 10 watt guitar amplifier with built-in amp modeling effects and tuner. Featuring two 3 speakers the THR10 can be powered with the included power supply or with eight AA batteries for on the go playing. The Yamaha designed speaker enclosure has been optimized to handle both guitar from its 1/4 input and stereo playback from its 1/8 auxiliary input. With multiple amp types to select from including Clean Crunch Lead Brit Hi and Modern as well as Bass Aco and Flat the THR5 provides you with a variety of tonal choices. A selection of built-in effects such as Chorus Tremolo Phaser Delay and three types of Reverb allow you to customize your tone further. All of the included effects are based on Yamaha's Virtual Circuitry Modeling technology or VCM. VCM effects were created to emulate the subtleties of analog effect pedals and amps. The User Memory function allows you to save up to 5 amp settings including effects for quick recall later. The THR Editor a software download available from Yamaha allows you in-depth control of the THR5 that goes beyond the control knobs on the amp itself. It also provides you with a compressor and a noise gate effect for the amp to give you further control of your sound.