S2 is 40% brighter than other former 720P editions(3000-4000Lumens), 60% brighter than 480P editions(2000-3000Lumens).
200″ LARGE SCREEN & PORTABLE LIGHTWEIGHT SIZE: Specially designed for home and outdoor movie entertainment, the maxmium projection size up to 200″, it is super portable(3.3lb lightweight), brings a portable cinematic viewing enjoyment.(The best wiew screen size is 80-120″, 8-11 feet distance)
HIFI CLEAR STEREO SPEAKER: Built-in 3W hifi stereo speaker, you will enjoy louder and clear sound, get emmersive movie entertainment. You can plug your own external speaker into the 3. 5mm audio output for better sound.