Speaker Type Sub Woofer System Speaker.1 x wired remote control Speaker. Speaker ports Built-in bass port for deep and rich bass. Speaker Ports: A Device that gives an address to which messages can be sent and that has a queue holding the messages received by the port but not yet consumed by the threads. Panel Type Front panel with power on/off.Power Indicator LED indicator for power on/off. Panel: An electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices. Audio Type Stereo audio quality type Signal to Noise Ratio in db75 dB, Voltage in volts110v-200v . Power Frequency 20Hz~20kHz. Woofer Capacity 15 Watts RMS each .Warranty 1 year.