Moen "Pretty Dolly" Delay Digital Hybrid circuit. Warm natural "musical" tones Natural echo delay w/ Maximum 500ms delay time. Dry/delayed ratio Blend knob.The Repeat knob controls the echo attenuation rate Full Metal enclosure.True bypass stomp switch. Size: 5 1/2 " H x 3 3/4" W x 1 1/2" D. Weight: 1 lb 10 oz