oakcastle 16gb mini portable mp3 player with bluetooth, fm radio, micro sd slot, headphones + waterproof case included, expandable up to 128gb, plays flac & wav files, ideal for running & sports majority oakcastle mp3 player bluetooth mp3 player: the oakcastle mp3 player can be used with bluetooth speakers or headphones. works in both wireless and wired modes - wired headphones (with built-in fm antenna) are included for wired listening and fm radio. expandable memory: internal memory of 16gb and expandable up to 128gb. 16gb internal memory + 128gb micro sd card (not included) allows you to store over 10,000 songs. compatible with micro sd cards of 16gb, 32gb, 64gb and 128gb. compact, lightweight and portable, with water resistant silicone case: the oakcastle mp3 player weighs just 27g and comes with a water resistant silicone case so you can carry it in all weathers. it also features a sports clip, so you can listen to music while running, walking, or just out and about. no more taking your smartphone out for runs - the oakcastle mp3 player, small and portable at 6cm long and a weight of just 1oz means you won't even notice it's there! * 30 hour battery life * rechargeable battery * sports clip * expandable memory * simple user interface * fm radio * voice recorder * bluetooth 4.0 * waterproof case included * plays mp3/wma/ogg/ape/flac/wav/aac-lc/scelp * in the box: oakcastle mp3 player mp3 player, earphones, usb cable, instructions guide<br><br>please note: the oakcastle mp3 player is not compatible with airpods.