The h.ear on 2 Wireless NC Headphones from Sony utilizes a pair of 39.9mm neodymium drivers and Bluetooth technology with LDAC support to deliver hi-res streaming audio. These headphones also feature noise-canceling technology, which lets you silence the ambient noise from your surroundings, so you can be alone with your music. In case you want to let in some essential background noises (e.g., traffic noises), Ambient Sound Mode lets you adjust what gets in. You can customize settings even more using the free companion app.The h.ear on 2 Headphones feature a comfortable, ergonomic design that folds up for easy portability when not in use. Simple touch controls on the side of the earcup allow you to answer phone calls, adjust playback, and activate your phone's digital assistant. So you can enjoy your music all day long, the h.ear on 2 Headphones include a built-in rechargeable battery that can last up to 28 hours. In case you're in a hurry, that battery can also deliver up to 65 minutes of playback on only a 10-minute charge.