Bass Booster Bluetooth SpeakerThe next generation music lover's wireless and portable Bluetooth speaker with surprisingly powerful sound waves for every occasion. Play tunes from your favorite device and let the fun times roll in your backyard! It comes equipped with a built in speaker for an incredibly crisp sound and a built in microphone to take calls hands free. It lasts up to 4 to 6 hours of playtime on a full charge. The digital display shows all of your device's information