180 watts RMS output power (45 watts x 4 channels). Treble/bass/balance/fader/volume. Preset eq. Subwoofer output. Wireless remote control included. Bluetooth (auto muting feature, hands free talking capabilities). Can play song saved on the memory from cell phone via Bluetooth. Last positions memory. Aux input for alternate audio source. Keypad for operate the FM radio frequency and easy to make phone call. Digital volume and mute control. 1 year warranty - for manufacturing defect only, large LCD screen for visual operation and display the incoming caller ID and name. Bluetooth 2.0 car compatible with almost all the cell phone with Bluetooth function. Answering, ending, rejection a call from the car radio player by press the key in the panel. Telephone book can save phone numbers and received calls. Microphone port for easy external microphone connection, car audio player play music from the USB and SD port. Stereo system features FM radio and capability MP3/WMA format music compatible.