JBL SoundBoost Moto Mod Speaker Moto Z (Warranty Available)1) Built-in kickstand Prop up your smartphone to make videos and music more immersive.2) Built-in battery JBL SoundBoost includes 10 hours of battery life so you can listen longer without using your phone's battery.3) The JBL SoundBoost has an integrated 1000 mAh battery that powers the speaker for up to 5 additional hours. The phone’s battery can power the speaker once the speaker battery is depleted. The integrated battery powers the speaker and is not designed to add additional battery life for the phone.4) Use the JBL SoundBoost speaker to amplify the audio on phone calls. The internal phone mics will still be used for the phone call. #Specially designed for new-released Moto flagship cellphone : Moto Z and Moto Z Force! Experience more JBL SoundBoost is just one way to transform your mobile experience with Moto Z + Moto Mods. #High-quality JBL audio Give your smartphone a boost with powerful stereo sound. #Listen in a snap Simply snap on the speaker and it plays instantly. No pairing. No hassle.