The Harbinger RT25 RoadTrip series battery-powered portable speaker makes it easy to amplify music, speech and vocals anywhere you go, thanks to its rechargeable battery, Bluetooth audio streaming, and the included microphone, cable and adjustable echo effect. Its battery-powered operation means you can take it anywhere, even for events where power is unavailable. Built-in Bluetooth audio allows convenient wireless streaming of audio, eliminating the need for cabling. The included microphone and microphone input let you easily amplify your voice, with an adjustable echo effect available for singers. There’s also an AUX input for wired connections from smartphones or other audio devices, and bass and treble EQ to perfect your sound.