Motomods JBL Soundboost Speaker!!! Compatibility Requirements: Moto Z Phone with Moto Mods Platform 1.0 or later. High quality JBL audio. Integrated kickstand. Listen in a snap- no pairing required. Up to 10 hours of music from the built in battery. Measured on the flat side of the speaker & measurement is approximate: 6" x 3". O ly used a couple times.