iFrogz Acoustic Case with Built in Bluetooth Speaker for Apple iPhone 6 / iPhone 6S - Turquoise Big Sound: The built-in Bluetooth speaker delivers amplified sound from your phone so you can easily share music and movies with your friends. Slim: Designed for ultimate portability, the Acoustic case is thin and slides easily into pockets and purses. Protective: The soft, impact resistant interior case protect against impact, dings, and scratches. Stylish: An integrated 1000mAh battery doesn't draw power from your phone and powers the speakers for up to five hours. Simple: A convenient on/off button preserves power so you can jack up the sound whenever you're ready while an included lanyard makes it easy to hang anywhere so everyone can enjoy the sound.