Graco Pack n Play Series - Using Electronics Module; Control Lights and Music features.

LIGHTS— Press once to turn top light (A) on,
press twice to turn both lights on, press three
times to turn bottom light (B) on, and four
times to turn lights off.
(A)
(B)
MUSIC— Each press will start the next music
function in sequence, after the 5th song is
selected, the next press will turn music off.