HZEX Digital Media Receiver units feature built-in Bluetooth technology, allowing the safe integration of smartphones and other devices into the car stereo system. App controll from your phone while enjoying quality sound from the single din car radio system. Phone calls can be accepted or rejected via the receiver's interface, using most Bluetooth enabled mobile phones. HZX124S features a Class A/B integrated circuit audio amplifier built-in with subwoofer outputs. Its 45 watts peak-power is sufficient for most factory car speakers. Sound staging options include balance, fade, and a bass & treble level adjustment. HZEX car stereo receivers feature fast charging USB ports and Auxiliary (3.5mm) audio input, some on the front panel for easy connection. Playback MP3 audio and MP4 video from a USB flash drive or pass audio from external media players to the car audio system. This 1 din multimedia car stereo will provide all the functionality you need from a head unit.