Product 2: Ground loop isolation circuit Dimensions: 7"(w)x4-1/4"(l)x1"(h). Product 2: Blue illumination independent master volume and subwoofer level Control with fader control select able 12Db low-pass Filer (60Hz or 90Hz). Product 2: 3.5mm Front aux input2-channel RCA aux input with variable gain adjustments and high level speaker inputs. Product 2: 1/2-DIN chassis graphic equalizer with built-in low-pass filter6-channel/ 8-Volt RCA outputs (front, rear and subwoofer)7-ban graphic equalizer (50Hz, 125Hz, 315Hz, 750Hz, 2.2Khz, 6Khz, 16Khz). Product 1: Pioneer Smart Sync - Pioneer Smart Sync is a highly evolved app available for both iOS and Android OS that utilizes the power of a connected smartphone to expand the features and user interface of Pioneer in-dash receivers. Product 1: Media Playback - Car stereo supports an array of file formats such as MP3, WMA, AAC, and WAV, ensuring compatibility with your entire digital music library. Enjoy seamless connectivity with USB/AUX inputs and experience crisp, high-quality audio. Product 1: USB and Auxiliary Inputs: Receiver is equipped with USB port and auxiliary input, providing multiple options to connect your portable devices as smartphones, MP3 players, or USB drives. Play music directly from the device or charge it on the go. Product 1: Bluetooth Connectivity: Its built-in Bluetooth technology, you can connect your smartphone wirelessly. Allow for convenient hands-free calling, enabling you to make and receive phone calls while keeping your hands on the wheel and eyes on the road.