Audionic B-999 Blue Beats Wireless folding Headphone provides big sound in a sleek, portable package. It delivers sound that is incredibly clear and revealing, allowing a wonderful insight into the music that you love, but is also incredibly durable and neatly fordable for use on the move. Specification: DRIVE UNIT : 40mm BLUETOOTH : Version 4.2 CHARGING TIME : 1.5 hours MICROPHONE : Yes AUX INPUT : Yes BATTERY : Up to 6 hours What's in the box 1 x Headphone