Questions about Sandberg Bluetooth Earbuds + Powerbank

No. The left earbud transmits the Bluetooth signal to the right earbud, so only the left earbud can be used.

Unfortunately No

In my opinion, 1.5 hours is not enough to charge the headphones, charge them overnight. If you have the same problem, return the headphones. I have them too but never had a problem.

Klappt tiptop!

I use my iPhone 7. I think yes, apple is always unproblematic.

Yes, that is possible. However, with restrictions. It is only possible with the master and not with the slave, because the master is connected to the unit. The operating instructions do not give any information about whether the master and slave can be disconnected again. If the Earbuds are used exclusively for the purpose described, it is advisable to try out whether both Earbuds can be connected independently to a device if they have not been connected to each other before.

Hi The usage times according to the manufacturer are as follows: Playback time: 3 hours Talk time: 3 hours Standby time: 120 hours Recharge time: 1.5 hours Greetings

I can't tell you exactly because I use a different device. As long as your devices support Bluetooth - even an iPhone should be able to do that ;) - then it should work. Apple Watch, I'm not sure, see if it has Bluetooth settings on it.