Yamaha THR30II Wireless Electric Guitar AmplifierThe Third Amp Guitarists are familiar with the tube amp stacks that sound amazing when turned up loud on a big stage, and with combo amps that are a perfect fit for smaller venues and rehearsal. THR ignored the convention that a practice amp should simply be a smaller version of a larger amp, creating a new third amp category designed around what players need when theyre playing at home. Fully Wireless Experience All THR II models feature Bluetooth