The X10 will last 4-5 hrs per charge.

You can take showers with them. But you can't take them swim.

Yes, They are low-latency.

Yes, They can work independently. You can use either left-earbud or right-earbud. in mono mode.

Yes they come with 3 sets of different sizes. S/M/L for your choosing.

Yes, they do block outside sounds.

Yes they cancel out the noise around you.

Please touch the " L" earbuds for 2 seconds to lower the volume. Please touch the "R" earbuds for 2 seconds for "volume +". Please refer to the User Manual .

The range of the bluetooth wireless earbuds is 33ft

The indicator light on both earbuds will turn off when they connect to your phone successfully.

No, unfortunately it can only be paired with one phone at the time.

X10 wireless earbuds only have passive noise cancelling. It has advanced mic for call, but it is not active noise cancelling mic. Soft silicone gel earpad (S/M/L earpads included for a perfect fit) will form a seal around your ear and you will be able to isolate and block external noise better, hear the music louder and clearer, and the bass will be more prominent.