Which Sena headsets does the wristband remote work with?

It is built for Sena Bluetooth headsets and is named for the 10S line. Check that your headset model supports the remote before buying, since not every Sena unit does.

Does it need its own battery?

Yes. The remote runs on its own battery and pairs to the headset over Bluetooth, so it is charged separately from the headset.

Can I use it with gloves on?

That is the point of it. The controls sit on the bars within thumb reach, so you press them instead of reaching for the helmet unit.

Does it work with other brands of intercom?

No. It is a Sena accessory made for Sena Bluetooth headsets, not a universal remote for other intercom brands.

What does it let me control?

It handles the common headset functions, such as volume, calls and intercom, from the bars. It does not add features the headset lacks.

Is it worth it if I already have a Sena headset?

It is worth it if you often ride in gloves and find the helmet buttons awkward. If you rarely change settings while moving, the headset alone is enough.