K4 features:
■ "100ANSI" high-brightness conference/home portable projection" ■ "vertical ceiling projection"
■ "Built-in charging, up to 2 hours of battery life"
■ "Physical resolution: 1280x720" supports 1080P full HD. ■ "Four-point side angle correction, side projection, and reduced screen size without distance limitation."
■「Support Netflix/Youtube/Google play」
■ "Support mobile phone tablet AirPlay/mirror screen same screen playback"
■「Support 2.4G/5G dual-band WIFI connection」
■ "Palm size, easy to carry"
