Lenovo Vibe K4 Note Very Useful and Graceful phone with new features.This phone with 3GB RAM for fast performing and gaming. Lenovo Vibe K4 Note has a decent display and good audio output, but with an under-performing camera module and below-par gaming performance, makes itself difficult to be recommended.This Phone With DOLBY Tow Speakers Upper and Lower side with very good quality of voice and audio. Volume level is very nice and high better then other different smartphones.