About this itemThe WH-CH520 has a Bluetooth multipoint connection, easy button operation and can even be controlled with your voice. Easy pairing with Swift Pair and Fast Pair, these Sony headphones are ideal for everyday use.With a battery life of up to 50 hours, you can listen to your favourite music without worrying about the battery. If the battery of your headphones runs low, a 3-minute quick charge gives you 1.5 hours of listening to music.The Digital Sound Enhancement Engine (DSEE) restores your music with high frequencies and gradually decreasing sound for a more authentic performance. With the EQ settings in the Sony Headphones Connect app, you can even adjust the sound to your own taste and create an individual listening experience.Take calls with a click of the buttons on the ear cups without having to take your phone out of the case. Thanks to the high-quality built-in microphone and noise cancelling, the WH-CH520 records the sound and reduces ambient noise during the conversation, so you can have clear conversations even in noisy environments.With the adjustable headband, soft ear pads and lightweight design, you can find the perfect fit for you, so that the on-ear headphones stay comfortable for longer.Compatible Devices: Cellphones