Sony WS623 comes with LED indicator. If it is not fully charged and require charging - it will show orange light and when it is fully charged - it will show green light.
Sony NS-WS623 is available only in the Black color.
Yes, you can connect it with phone and talk and can use as a normal Bluetooth headset.
You can check the charging status with the lamp ( 3 ).
While the battery is charging: orange when charging is complete: green
Yes, you will get a pair of normal earbuds and a pair of swimming earbuds.