. 1ms Visual Response Boost 1ms Visual Response Boost (VRB) works by either quickly turning off the backlight or inserting a blank black image between frames aka “blinking”. This results in less noticeable blur in fast moving images because the liquid crystals don't have to double up on frames as they rise & fall which could also achieves the effect of 1ms MPRT for clear blur free visuals.AMD Radeon Free Sync With AMD Radeon Free Sync the game’s frame rate is determined by your graphics card not the fixed refresh rate of the monitor. This means the monitor’s frames are synced with the graphics card’s frames which eliminates screen tearing & delivers very smooth gaming experiences. Blue Light Shield Technology Acer Ultra-Low Blue Light technology reduces the amount of harmful blue light emitted by LED panel. You can access & select four different filter settings onscreen easily through the OSD menu to find the best one that suits the task at h&..