Listen all day with the Sony WH-CH520 on-ear headphones. These headphones are powered with a 50-hour battery. It features a lightweight over-the-head band and padded cups to ensure optimal comfort, and the ten-metre Bluetooth range allows for easy connection to Bluetooth compatible devices. They’re also equipped with a built-in microphone for crisp, hands-free voice calls. | Sony WH-CH520 On-Ear Bluetooth Headphones w/ Microphone - Black