Specification: Model: LBPS1401D Voltage: 12V Resistance: 4Ω; Rated power: 60W Voice coil: 20mm ASV Sensitivity: 88 dB/ W/ M Frequency: 80-20 kHz Magnetic circuit specification: 4.3oz Bass drum paper: paper carcass Diaphragm material: Foam side Size (DxH): Approx. 10.2x4cm/ 4.02x1.57" Wire length: Approx. 90cm/ 35.43" Applicable to all car models, designed for the installation of the car environment to ensure that audio directivity, so that the attenuation of high frequency to very low.