Battery up to 13 hours (Bluetooth) - 16 hours (TSC) plus two full charges in the case
Other than the logo, nothing.
The earbuds do have a light to indicate battery life. To the best of my knowledge, they only blink when dying, charging, or while connecting. Once connected, the lights turn off until the battery level is very low
I believe so. Why would they have bluetooth connectivity if not for music and phone calls?
Yes they do. they have touch controls for volume control, pause/play function, skip and skip backwards, and a touch control for answering phone calls