ZTE Spro 2 Smart Projector WiFi Only - Retail Packaging (Silver) 5" touch screen display with 720P resolution, Rechargeable 6300 mAh battery provides hours of viewing time 20" - 120" viewable screen size with dlp (digital light processing) technology for crisp images and reliable performance The 4000:1 contrast ratio delivers a crisp, detailed Picture. Autofocus and keystone correction ensure distortion-free image Quality Project directly from the cloud or via HDMI cable, miracast, or USB Dual JBL speakers - deliver rich, powerful sound to bring your entertainment or presentation to life