The Jam Audio Replay Wireless Portable Speaker comes with massive sound all tucked away into a compact frame no bigger than the size of a baseball. The booming sound from this speaker is encompassed with a rubberized exterior and delivers up to 5 hours of non-stop music. It also comes with speakerphone capabilities for added convenience. Speaker Features Battery Life: Up to 5 hours Battery: Rechargeable (micro USB) Cables Included: 1 x Micro USB Wireless Connection: Bluetooth® Wireless Range: 9.1m (30’) Integrated Microphone: Yes