The BOSS PH-3 Phase Shifter pedal provides a wealth of vintage and modern phasing effects, including new "Rise" and "Fall" modes for unique, unidirectional phasing. Syncing these phasing effects is as simple as tapping the pedal to the desired tempo, while an optional expression pedal provides realtime control of the PH-3's Rate, Filter and Tempo.
 
-On/Off foot Pedal switch Rate knob
-Depth knob
-Resonance knob
-Stage knob
-1/4" mono input and output jacks
-1/4" Expression/control jack
-DC 9V 50 mA power in jack
-Alkaline battery: Approx. 6 hours
-buffered bypass