Q: The audio jack port can connect to any device? And how about warranty and lifespan product?
A: The audio jack port is 3.5mm, thus you can connect to any device with a 3.5mm aux port.
Q: Can two speaker charge simultaneously or one at a time?
A: One at a time.
Q: Can the two speakers be separated into different parts of the room?
A: Yes, you can seperate the speakers and they will do fine. (33 ft)
Q: If speakers are installed in different rooms will they both play same voice and music?
A: If they're linked together in a" true wireless stereo" configuration (TWS), one will be the left channel and one will be the right channel.
Q: Can it be uses for an outdoor workout?
A: Yes, it can. With IPX7 waterproof, you don't have to worry about rains or spills.