Sony WH-CH720N White is a lightweight over-ear wireless headphone with Active Noise Cancellation powered by Dual Noise Sensor technology and Integrated Processor V1. It offers up to 35 hours of battery life with fast charging (3 minutes for up to 1 hour playback). The 192g lightweight design ensures all-day comfort. DSEE technology enhances sound quality for natural and clear audio. Built-in microphones provide clear hands-free calling.