Sescom SES-A-V-SYNC Audio / Video Lip-Sync CorrectorSescom SES-A-V-SYNC A/V Lip-Sync CorrectorThe SES-A-V-SYNC is a L/R In-Out audio-video synchronization corrector. Another way to describe it is it is a compact device that corrects audio delays between audio and video. When distributing video over long distances through multiple devices like distribution amplifiers and set top boxes there can sometimes be a noticeable delay which results in audio being played before the video. This also happens when the audio from sources is sent to audio amplifiers over analog lines while the video is send to the display over HDMI or digital lines. The SES-A-V-SYNC can be manually adjusted so the audio delay can be set from 0~300ms in set increments so you can perfectly synchronize your audio and video -so when the program is viewed the audio and video are perfectly synched-up and good to go. The SES-A-V-SYNC, also sometimes referred to as a "Lip-Sync-Corrector" is an affordable and compact device that when installed greatly enhances your audio/video experience.USES & FEATURES Home Theater; Cable TV; Set-Top-Box; Showroom display; High Resolution Audio Sample Rate Of 48 kHz; Zero Delay signal bypass Option; Low power consumption; Up to 24-bit resolution; Powered via included external universal AC/DC adapter (input: 100V~240V AC, 50~60Hz); Dimensions excluding connectors (L X W X D): 1.75" X 1.75" X 1";