Using overcurrent protection device. The high power non- capacitor, the low frequency part is converted by inductance to achieve a clear and full effect. PCB floor with fire board, thick copper layer can withstand large current. Use of polypropylene film divider special capacitance and high temperature resistance wire inductance coil. Item Type: Speaker Frequency Divider Maximum Power: 80W Frequency Response: 48 Hz - 20K Hz Impedance: 4-8 ohm Application: under 5 inch speaker Colour: as shown Material: plastic + metal Package Contents: 2 * 2way Frequency Divider with junction box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.