Electro-Harmonix Deluxe Memory Boy Analog Delay Pedal W/Tap TempoThe Electro Harmonix Deluxe Memory Boy Analog Delays Quality ICs deliver warm and organic analog tones while tap tempo allows you to always be in sync with the groove. Choose five note divisions for metronomic variances. Sweet modulations can add a lush ambience while the expression pedal input gives you external control. Tap divide allows timing subdivisions. Expression pedal input allows for flexible control. It has triangle and square wave