All optical audio switch can support DD/DTS 5.1CH audio formats, but only the very best can also support the latest DD+ / Dolby Digital Plus audio format. UTS3X1 is the latest premium quality three input to one output Toslink optical audio switch to support audio formats including 2CH PCM, DTS & Dolby Digital 5.1CH and DD+ / Dolby Digital Plus; other optical audio switches can't support the latest Dolby Digital Plus audio format. Get this for future-proofing application. | Compact size (25mm x 50mm x 60mm) durable aluminum metal jacket construction with IR remote control & input selection button on the switch | Comes with two 3ft premium quality Toslink cable capable of supporting Dolby Digital Plus / DD+ audio; an 80cm long micro USB power cable is included, USB power supplier is not included. | Please make sure to use a constant DC 5V USB power source to power this unit, do not use dynamic USB power chargers for cell phones / tablets. | Package Includes: UTS3X1 optical audio switch, IR remote control, two 3ft optical cable, one micro USB power cable, one year warranty