FEATURES Waterproof and dustproof Durable, tough design. This is the ultimate sporting companion. The IPX5-rated splashproof remote control can be used in light rain or rinsed under the tap, and the IPX5/8-rated waterproof headset can be fully submerged in saltwater to a depth of 6.56 feet. Both are IP6X-rated dustproof, so you can take your run or workout to the beach. NFC™ and Bluetooth® wireless technology Stream music and other audio wirelessly from your smartphone via Bluetooth®. Up to 16 GB storage for audio Load up the Walkman® with your favorite playlists or podcasts. Dustproof Whether you''re doing sand-based sports or simply running along the beach, our durable Walkman® can withstand small particles. Salt waterproof Salt waterproof to a depth of 6.56 feet, the NW-WS620 can be submerged for up to 30 minutes, making it perfect for swimming and water sports. Ready for extremes If you''re a hiker or a climber, the NW-WS620 is your perfect companion, enduring extreme temperatures between 23°F and 113°F. Lasting comfort Wearable, ergonomic in design, slim and light, the NW-WS620 is comfortable and stays in place whatever your sport. Ambient Sound mode Ambient 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. The freedom to stream Fancy spontaneously changing your regular training playlist? Stream music or other audio wirelessly from your smartphone using the Bluetooth® function. Smartphone-compatible Stream from your smartphone via the Bluetooth® function with simple NFC™ One-touch pairing. Bluetooth® remote control Take calls and change tracks via the compact, splashproof remote. Attach it to your finger or wrist for fuss-free audio control. Lasting power 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. A built-in microphone for hands-free calls You don''t have to pause your workout to take that important phone call. With a built-in microphone and Bluetooth® connectivity, you can make and answer calls wirelessly from your smartphone. Drag and drop all your files With a Walkman® player, you are never tied to just one music service. Just drag and drop MP3s from iTunes®, Windows® Media Player or Internet Explorer® and enjoy. Multi-format playback also lets you play WMA, AAC-LC, or L-PCM music files. Standard and waterproof earbuds for versatile listening Get the best sound for your workout with a choice of standard or waterproof earbuds. Standard earbuds give you a comfortable fit and balanced sound. Hitting the pool? Switch to the waterproof earbuds; a thin film covers each earbud, preventing water damage within the Walkman and optimizing sound levels for underwater listening.