HighBlueThe best music player to enhance the sound performance of the authorized Bluetooth headphone or other Bluetooth audio devices. A music player with simple setting, outstanding equalizer and 3D sound effect. - Customized EQ and save settings (Maximum 25 settings)Sound effect for the authorized headset/audio devices:- Professional EQ presets for the authorized Bluetooth audio devices3D Sound effect:- 4 built-in 3D sound effect (Chamber, Car, Plaza, Theater)Player:- Play your iPod and local music library- Switch the background image- Airplay