· Preset Selection——Easy to press the different buttons to change the preset tone while playing.· Tap Tempo——If the currently selected preset patch has a delay effect, GWF4 supports TAP TEMPO to set up the delay time of delay effects.· Tuner——The LED screen will show the currently playing note after connecting the device and setting the Tuner button.· Wireless Looper Drum Machine External Footswitch· Chargeable Built-in battery, type C fast charge.· 2.4G Wireless connection to pair with GTRS Intelligent Guitar, MOOER SD30i Guitar Amp, PRIME P1 Intelligent Pedal