Product description guaranteed to stay on with a first to market interchangeable ear lock system the run free pro is an all new bluetooth v40 wireless earphones engineered to appeal to everyone on the go the run free pro also comes with fast speed auto pairing and wind noise reduction the sporty yet fashionable wateproof body ensures you to look and feel great while enjoying soul39s signature sound with up to 8 hours playtime key features soul39s signature bluetooth wirel