Connect all your worlds perfectly with the Sony WF-L900H LinkBuds that feature an open ring design that allows you to hear calls, music and other online content anytime. Built-in Bluetooth connectivity Up to 17.5 hours of listening time IPX4 rated water resistance High-power neodymium disc magnets Music playback & voice control Up to 17.5 hours of listening time The Sony WF-L900H LinkBuds Truly Wireless In-Ear Headphones allow ambient sounds around you transparently, feeling nothing on your ear. Connected and aware You’ll hear when someone calls your name during a call and can chat with friends while listening to music due to the newly developed ring-type driver unit with the centre of the diaphragm open for audio transparency, allowing you to clearly hear the sounds around you. Noise-free calls With precise voice pickup technology and advanced audio signal processing, the person on the other end of the call will hear your voice clearly, even when you are in noisy situations. Music playback with a tap With a wide area tap, you can use double or triple taps in front of either of your ears to control your music playback. Water-resistant for everyday use With IPX4 water resistance rating, splashes and sweat won’t stop these headphones so you can keep on moving to the music. Clear Bluetooth signal For low latency and high sound quality, the Bluetooth signal is transmitted to both ears at the same time, thanks to the powerful Integrated Processor V1. Listen all day, charge in minutes You can enjoy 5.5 hours of charge from your headphones and store another 12 hours in the case for a full 17.5 hours of charge. Just a 10-minute quick charge gives you up to 90 minutes of listening time.