These are some of frequently asked questions for waterproof Bluetooth headphones:
Q: Are they compatible with iPhone or Android device?
A: Yes, they connect via Bluetooth.
Q: Can you wear glasses/sunglasses with them?
A: Yes, you can.
Q: I have very big ears, can I still wear them?
A: Yes, you can. Same goes for small ears.
Q: Can I make a call with them?
A: There are some you could make calls, you should check before buying.
Q: Can I use them while swimming?
A: Yes, you can.
Have more questions? Feel free to contact me.