SONY | Good Sound Quality BT Headphone Battery Life 50 hrs Quick Charge 3 Mins 1.5 hrs WH-CH520/BZ Black | WH-CH520/BZFEATURES: The 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