It is MP3 player Bluetooth correspondence waterproofing 　 seawater 　 dust proofing 　 cold-proof heat performance 　 outside sound uptake function 　 blue NW-WS623 L for the 4GB 　 one SONY headphone type Walkman W series NW-WS623

It is MP3 player Bluetooth correspondence waterproofing 　 seawater 　 dust proofing 　 cold-proof heat performance 　 outside sound uptake function 　 blue NW-WS623 LJAN4548736055285 model number NW-WS623 large size 4GB color blue for the 4GB 　 Walkman product cord 13006278372 brand name SONY headphones one model Walkman W series NW-WS623 of the 　 type that to support seawater, and even hands-free call full marathon adds dust proofing, "outside sound uptake function" to make it easy to hear the sound around the toughness specifications with the cold-resistant heat performance and the voice of the person to the stamina for up to 12 hours of the room through 　 voice call application and plays an active part in the charge for approximately three minutes in the wider scene that is usable as OPR (operation) lamp 　 Bluetooth (R) headphones telling the QUICK charge that I can regenerate for approximately 60 minutes about a correspondence battery residual quantity ※Because I sell even other lacing braids together, there is out of stock possibility by a timing. I contact you separately on this occasion. ※Because I sell even other lacing braids together, there is out of stock possibility by a timing. I contact you separately on this occasion.