Take the ear-buds from the Charging Case and they’re all powered up for 6 hours of continuous use, courtesy of custom Lithium-Ion batteries. And the charging case can be used to provide an additional 24 hours of charge when used on the move. Specifications: Dimensions: H:4.5 x W:21.0 x D:12.0 cm Colour: Black Guarantee:1 year Material: Plastic - Metal Model Number: M-LINX-BLK