Improve the sound of android devices and Bluetooth speaker, headset, buds and more Bluetooth audio devices. Use these Bluetooth audio devices to their optimal volume. App can help to pair and connect your Bluetooth devices directly.. Save preset settings to auto set while the device is connected with Bluetooth. Use default saved preset like: Classical, Dance, Folk, Hip Hop, Jazz, pop, Rock etc. App Features : - Make custom equalizer preset to individual Bluetooth Audio device. - Save equalizer