Made for the outdoors, the Sports Walkman is tough and durable. Perfect for all terrains, it's salt waterproof and dustproof, as well as slim and comfy to wear. With Bluetooth and NFC technology for wireless streaming for audio streaming from your smartphone, up to 4GB of storage for your music,a quick chargingbattery, and Bluetooth remote control, it's the ultimate sports companion.Sale Waterproof and DustproofDurable, tough design, this is the ultimate sporting companion on land and at sea. Salt waterproof to a depth of 2 meters, the NW-WS625can be submerged for up to 30 minutes making it perfect for swimming and water sports.Whether you're doing sand based sports or simply running along the beach, Sony'sdurable Walkman can withstand small particles.Ambient Sound modeAmbient Sound mode uses the microphones built into the left and right side of the Walkman to allow you to hear the ambient sounds around you, even as you listen to music. So, you can listen to your fitness instructor or talk to your friends without missing a beat.Lasting Comfort and PowerWearable, ergonomic in design, slim and light, the NW-WS625is comfortable and stays in place whatever your sport. Enjoy a 12 hour battery life or if you're stuck for time, a three-minute power-up gives 60 minutes of listening time, so you can charge while you get ready.Bluetooth Remote ControlTake calls and change tracks via the compact, splash proof remote. Attach it to your finger or wrist for fuss-free audio control.Built-in MicrophoneYou dont have to pause your workout to take that important phone call. With a built-in microphone and Bluetoothconnectivity, you can make and answer calls wirelessly from your smartphone.