YAMAHA THR10II is a stereo amplifier with Bluetooth connectivity for guitar with emulations of amplifier models. The technical characteristics include 8 amplifier models selectable through a dedicated encoder: Special/Hi Gain/Lead/Crunch/Clean/Bass/Acoustic/Flat, plus 10 electric guitar effects, 2 bass and 2 acoustic guitar effects available through the THR editor app for desktop and mobile devices, 2 integrated 3" speakers for 20W of power, Hi-Fi audio reproduction with Extended Stereo technology, 4 digital effects selectable by encoder: Chorus/Flanger/Phaser/Tremolo, Echo/Reverb command with Spring and Hall reverb, 3-band Eq and Volume Master and Gain controls. It also has 5 user memory slots for saving presets, plug-and-play USB connectivity for audio recording and playback. Includes power supply.