A:AnswerInside the Box is the following items
Connect Bluetooth Transmitter, Micro-USB charging cable, 3.5mm audio cable, 3.5mm to RCA audio cable, Digital optical SPDIF audio cable, Quickstart guide
A:AnswerI used the optical cable and don't have a synchronization problem. I am also using a pass-through feed from an Apple TV receiver. A caveat may be that I have this installed on the latest smart tv (LG)