4K dongle D03 is a quad core Pure OTT android box with androidtv™ 9.0 based on Amlogic S905Y2 chipset, which could apply for Google certification. It supports dolby digital and up to 4k resolution to provide an audiovisual experience. The most useful features are Chromecast build-in and voice search control. It supports all kinds of official apps for TV version such as YouTube, Prime Video, Google Movie, Google Music, Google PlayStore, etc.