4" Car Coaxial speaker Model: JYCS0402 Features: - Ceramic Polypropylene Cone - VC:25mmKSV sandwich coil - Swivel Neoboron Tweeter with silk Dome - Magnet: 10oz - Power: 60W / 120W Max. - F/R: 90 20,000Hz - SPL: 92dB 1M/1W - Impedance: 4Ohm Feel free to contact us if you need further informations.