Connectivity: Bluetooth 4.1, AUX-in (3.5mm), USB Driver: Full-range speaker + passive radiator Output Power: 10W RMS Frequency Response: 80Hz – 20kHz Battery: Built-in rechargeable (playtime varies by volume) Charging: Micro USB (cable included) Microphone: Built-in for hands-free calls Controls: Power, volume, play/pause, call answer/end Dimensions: Compact & portable (exact size in product details) Color Options: Black (or other available variants)