JBL Bluetooth headphones offer up to 11 hours of uninterrupted audio playback on a single charge. These JBL headphones have 32mm drivers and JBL Pure Bass Sound.Go wireless with the JBL T450BT Over Ear Bluetooth Headphones, which are flat folding, lightweight, comfortable, and compact. Incorporated with a pair of 32mm drivers, it punches out some serious bass and reproduces supreme quality sound. You get up to 11 hours of uninterrupted audio playback on a single charge. It is brought to you by the brand of repute, JBL, known to offer impressive sound quality. Designed with precision, you are sure to have an unmatched listening experience.