[3 Way Optical Switch Box] It Allows Users to Switch 3 Digital Toslink SPDIF Optical Input Signals from TV Blu-Ray Player Cable Box HDTV to 1 Optical Toslink Signal on Sound Bar, Receiver, Speakers, Hifi-System and More. [IR Remote Control] With High Quality Remote Control, Support Manual and Infrared Remote Control Switching, It Is Convenient for Users to Switch Different Input Signal, Output or Audio Channels. [Audio Format Support] Support All Digital SPDIF Audio Formats, Including PCM2.0/ DTS/ -AC3, Supporting Signal Retiming. [Lossless Signal Transmission] The Signal Transmission Distance Can Reach 40m, The Loss Is Less Than 0.2db / M, and the Sampling Rate Can Reach 96KHz. New Optical Cables Are Recommended to Avoid No Signal. [Power-off Memory Protection] The Switcher Have Over-voltage Protection, and Will Keep Recording the Last Used Mode When Power off, Including a 1m USB Cable and a 1m OD4.0 Optical Cable. Powered by 5V 1A USB Cable. Wide Application This optical audio switcher is suitable for most occasions, like home theater, supermarket, HiFi-system engineering etc. Colour: Black Material: ABS Package Contents: 1 x 3 Ports Toslink Switcher 1 x Remote Control 1 x USB cable 1 x Toslink cable (Optical cable) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.