FERRISA 4x2 HDMI Matrix Switch,4 in 2 Out Matrix HDMI Video Switcher Splitter +Optical & L/R Audio Output,Support Ultra HD 4K,3D 1080P,Audio EDID Extractor with IR Remote Control 4K@30Hz sold2024 it will sound "dingdong" to

it will sound "dingdong" to indicate that the alarm is in doorbell mode

Design with sealed polycarbonate lens and housing to prevent damage from moisture and corrosion

and friends

5 mm audio jack

It supports HDCP 2

FERRISA 4x2 HDMI Matrix Switch,4 in 2 Out Matrix HDMI Video Switcher Splitter +Optical & L/R Audio Output,Support Ultra HD 4K,3D 1080P,Audio EDID Extractor with IR Remote Control 4K@30Hz sold2024 it will sound "dingdong" toFERRISA 4x2 HDMI Matrix Switch,4 in 2 Out Matrix HDMI Video Switcher Splitter +Optical & L R Audio Output,Support Ultra HD 4K,3D 1080P,Audio EDID Extractor with IR Remote Control Product Features 4 IN 2 OUT MatrixThis HDMI Matrix can connect up to 4 HD Source to 2 HDMI Display terminals with optical fiber or stereo headphone output,it allows four HDMI devices to be switched or split easily to two HDMI compatible monitors or projectors. Ideal solution