Product description: Wide dynamic range;Dual bass sound unit design a broader range; Excellent bass response;Connect to all MP3 players and digital audio device; Functional wired controller for mobile phone easy switch between music and communication 3.5mm quality audio connecting cable is compatible for mobile phones and tablets; TPE anti-winding design enhances the durability flexibility and longevity of the cable; Remote control button function support line control : The next song/ The last song/ Pause/ Hung up the phone.