Mp3 input jack:3.5mm
Earphone input jack:3.5mm
Effect: Clean, Distortion
Power indicator Power: AAA battery, 2 pieces(included) Material: ABS Plastic
Weight:54g(with the clamshell)
Dimension:89(L)×77(W)×26(H)mm For JA-03,We have six models, they are metal, super lead, Lead, acoustic, Tube drive, English channel.