iHour Rugby Design stereo Wireless portable mini Bluetooth speaker-Orange Double track music output, using the vibration model of arc chamber and sealed bass enhancing, the sound quality is clear, no turbidity resonance sound bass section, intermediate frequency and high frequency bright no hissing sound, voice is soft. With USB/TF card slot,support MP3 fromat,built-in FM radio. Compatible with PC,MP3/MP4 player and Exterbal Audio devices with 3.5mm stereo output jack. With one rechargeable Lithium Battery.Includes USB charging cable and 3.5mm audio cables. Built-in microphone for hands-free speaker phone calling Easy to pair.