40mm drivers built-in rechargeable battery up to 24 hours of playback swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushions. 40mm drivers built-in rechargeable battery up to 24 hours of playback swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushions.swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushions. 40mm drivers built-in rechargeable battery up to 24 hours of playback swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushions.swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushions. 40mm drivers built-in rechargeable battery up to 24 hours of playback swiveling, foldable earcups includes audio cable with remote/mic multi-point connection support built-in mic for hands-free calls ambient aware & talk thru fabric headband & soft ear cushion