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Sony NW-WS623 Waterproof Bluetooth Headset Questions & Answers

Sony WS623 has 4GB internal memory and you can further expand it up to 16GB with the help of MicroSD card. 

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Sony NS-WS623 is available only in the Black color. 

You can check the charging status with the lamp ( 3 ).

While the battery is charging: orange when charging is complete: green

Hold down the button (1) for 3 seconds.

You will hear the shutdown sound. Then, the Walkman and the lamp ( 2 )  will turn off.

Sony NS-WS623 is quite light weight. It weighs just about 32 grams.