Rex-15 is the latest in the Rex series that has become increasingly popular amongst masses. It is an unbreakable portable speaker with rechargeable battery that is lithium made. The BlueTune dual purpose speaker is especially designed with fusion light effect that gives it a stylish and on-the-go party feel. With the impeccable power sound of the speaker, it is perfectly capable of strengthened volume potential that delivers crystal clarity and bass. It also external mic supported.