Equalizer Support : Your sound, just how you like it, Customizable Equalizer for Deep Bass Application Support : Headphones Connect app for Android & iOS Battery Life : Long battery life of up to 25 hours, 10-minute quick charge will give you up to 60 minutes of playback Sound Quality : DSEE restores high frequency sounds lost in compression IP Ratings : Splash-proof and sweat-proof with an IPX4 rating Built-In Mic : Easier, clearer hands-free calling Operations : Easy to operation with buttons to play and pause, skip tracks and adjust the volume