? 3-1/2 2-way Indoor & Outdoor Speaker Box ? Easy to Install (vertical or Horizon install) ? Weather-Resistant ? Woofer Magnet: 8 Oz ? Black Mica P.P injection Cone with Rubber edge ? Voice Coil: 25mm K.S.V ? 13mm Dome Tweeter ? Sensitivity(2.83V/1M): 86dB (3dB) ? Frequency Response: 90Hz~20KHz ? Maximum Recommended Amplifier Power: 60W ? Impedance: 8Ohms ? W/ Install Bracket ? With 70V/100V transformer(10W/5W/2.5W)