Yes, Sony NS-WS623 is meant for the rough usage and it is both - waterproof and dustproof.
Yes, Sony NS-WS623 does have NFC connectivity option.
Sony NS-WS623 is quite light weight. It weighs just about 32 grams.
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.
Yes, you will get a pair of normal earbuds and a pair of swimming earbuds.
No. Sony NS-WS623 does not have FM radio.
No. It does not have.
Hold down the button 1 for 3 seconds.
You will hear the startup sound.
When the Walkman turns on, the lamp (2) lights up.
Hold down the button (1) for 3 seconds.
You will hear the shutdown sound. Then, the Walkman and the lamp ( 2 ) will turn off.
Connect the USB cable (supplied) to the USB cradle (supplied). Then, attach the Walkman to the USB cradle.
Make sure to connect the terminals ( 1 and 2 ).
You can check the charging status with the lamp ( 3 ).
While the battery is charging: orange when charging is complete: green
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.
No. Sony WS623 comes with non-removable battery.
Sony WS623 has 4GB internal memory and you can further expand it up to 16GB with the help of MicroSD card.
Yes, it does have fast charging. Charge it for just 3 minutes and it will work for another 60 minutes.
No. It does not have remote control.