This tiny powerhouse packs a pi3 and 64gb sd card, as well as a 5″ TFT LCD screen. The HDMI and audio ports are available on this devices as well as a standard external usb port. It contains two 2200mAh battery that allows for roughly 3 hours of play time, and charges via a standard micro usb cable. This software is retropie with attract mode as the front end, so it looks and plays great. You can even play on a big screen with the hdmi as the main screen (requires removing the hdmi bridge). This is available either as a kit, or completely built. Your choice on if you want to dive into the world of DIY handheld assembly.