In-ear headphones feature ergonomic ear hooks and gel tips to ensure a comfortable and secure fit Bluetooth 5.1 connectivity enables quick and easy connection to your smart devices, with a generous nine-metre (30 foot) wireless range 6mm dynamic driver delivers a crystal clear frequency response of 20Hz to 20kHz Touch sensors on headphones make it easy to adjust the bass and other sound settings, with no app required IP55 rating ensures they resist sweat and dirt, allowing you to work out hard and take your headphones outside Built-in touch controls let you adjust the volume, play or pause, answer calls, and more Built-in microphone in each earbud allows for clear voice calls Enjoy up to eight hours of use on one charge, with an extra 24 hours of charge available from the charging case Includes charging case with integrated charging cable and three sets of gel tips