A few questions you might ask yourself before purchasing the headphones: 1. Does this headphones work with the transmitter Ive had at home? This headphone receiver only connects to the transmitter base of the Plus Version of your SM-829D1 Plus Version & 829D2 Plus Version. If your SM-829D1 or SM-829D2 does not belong to the Plus Version, the headphones will not connect to the transmitter base. 2. How do I know if the headphones I am going to replace belong to the Plus Version or not? Firstly, you can find this information in the user manual or packaging box. Secondly, the Plus version has BT/TV switch on the right earphone, while headphones with an ON/OFF switch on the right earphones will not comply. Lastly, as a final tip, you can check the compatibility with SIMOLIO support team. 3. Can I use the headphones as Bluetooth headphones only, and connect it to TVs Bluetooth and cell phones Bluetooth? Sure. While the headphones are listed with the purpose of serving as add-on/replacement headphones for SM-829D1 (Plus Version) and SM-829D2 (Plus Version), a simple switch of the BT/TV switch to BT would seamlessly connect other Bluetooth devices for Bluetooth audio.
But be aware that the audio latency will occur as the headset does not support low latency codec or audio profiles.