TaoTronics Wireless Over Ear Headset TT-BH21 with Dual 40mm Drivers & 25 Hours Playtime Comfortable Fit for All Head Shapes: Treat your ears to pillowy, fully customizable comfort with memory foam ear pads, adjustable headband, and swiveling ear cups 25 Hours in Just 2: Enjoy up to 25 hours of wireless music playback or a 3 month standby time after 2 hours of charging; connect via the included 3.5 mm cable when the battery finally runs out Supreme Auditory Experience: Stable CSR chip and two 40 mm large-aperture drivers make for unprecedented audio; acoustic seal cushions block outer noise for a more immersive reproduction CVC 6.0 Noise Cancelling Microphone: Reduces environmental noise and background disturbance for crisp, clear phone call quality even in noisy, crowded environments On-Ear Control Buttons: Adjust the volume, change the track, and play and pause the music via the headphones; foldable design makes it easier to fit in the included case for carrying and storage SR.450