For over 60 years, JBL has engineered the precise, impressive sound found in big venues around the world. These headphones reproduce that same JBL sound, punching out bass that’s both deep and powerful. 11-Hour Battery With up to eleven hours of continuous audio playback on a single charge, there’s enough juice to last all day. Controls on Earcup Control music playback and answer calls on the fly with buttons and microphone placed conveniently on the earcup. Foldable, Lightweight and Comfortable Lightweight materials make these headphones comfortable over your ears, and a rugged construction ensures these fold and unfold perfectly over the years. Bluetooth 4.0 Listen to music wirelessly from any Bluetooth-enabled device. JBL T450Bt on-ear wireless headphones are flat-folding, lightweight, comfortable and compact. A pair of 32mm drivers punch out some serious bass, reproducing the powerful JBL Pure Bass sound you’ve experienced in much bigger venues. Music and call controls/microphone are placed on the earcup. And because your music should go where you go, you’ll get up to 11 hours of uninterrupted audio playback on a single charge.