Specifications:
Shape: Roectangular
Material : Metal, Plastic, Magnet
Power: 3 watts
Resistance: 4 ohms
Magnet Diameter : 16mm/0.63 inch
Fixing Hole Dia : 3mm
Fixing Hole Distance : 34 x 23 mm / 1.34 x 0.91 inch (L*W)
Overall Size (Approx.): 40 x 28 x 11 mm / 1.57 x 1.1 x 0.43 inch (L*W*H)