Features High Definition Bluetooth? 5.0 Wireless Technology, Simply Pair With Your Device To Enjoy Dynamic Stereo Sound, Perfect For Your Home, Office Or Outdoor Activities, Features A Micro-USB Input (Cord Included), Waterproof, Carabiner Attachment, 1800 mAh Lithium Polymer Battery, Pairs From Up To 30 Feet Away, Up To 2 Hours Of Play Time, The Bluetooth? word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Promo LLC?, Inc. is under license. Other trademarks and trade names are those of their respective owners.