HA-FX9BT Gumy headphones feature an inline remote and microphone that allows the user to play, stop, and skip tracks as well as answer phone calls. They also offer five hours of wireless listening and have 9mm neodymium drivers and come with small and medium silicone earpieces that provide a secure and comfortable fit. Features and Benefits Bluetooth - Listen to your favourite music playlists. Hassle free - 5 hours of wireless listening with built-in rechargeable battery. Comfortable - secure fit by the elastomer material. Powerful sound - with 9.0mm Neodymium driver unit. Specifications 3-button remote Mic for Bluetooth devices S/M size earpieces included 9.0mm Neodymium driver unit Colour: Black