Zealot S32 mini wireless speaker features a powerful driver with amplifier for clear sound with good bass. Zealot Outdoor Speaker is as stylish as they come. Cylindrical cavity design make it nice & sleek, the compact design maximizes portability. Toss it in a backpack, hang it on your handlebar with the attached strap. This mini wireless speaker support multiple play modes as you can imagine: Bluetooth/ Flash drives/ Micro SD card(32G MAX)/ AUX jack line-in. Never miss a good tone anywhere.【Built-in HD Microphone】 Need to make a call? No problem, S32 can ensure a quality calls with its nosie cancelling speakerphone. It’s prefect for indoor or outdoor use: gym, office, working or reading, fishing, hiking, yoga, etc. You’re not alone with this small thing.