Great for running, hiking, cycling, fitness, yoga, travel, gym etc. IPX7 waterproof,Adopting highly sealed shell + nano-coating waterproof technology, its waterproof performance reaches IPX7 waterproof standard, and it is not afraid of sweat attack even if it is used in severe sports.LEAVE CHARGER BEHIND: the device can run up to 25 hours of consistent music, phone calls and videos before next charging.Scratch resistant surface to prevent the headset from signs of wear and tear
SWEAT RESISTANT: Swivelable earcup with ultra-foldable compact water-resistant frame to provide maximum comfort and portability for everyday usage.
#In ear neckband headphones koss driver