... voice box, with innovative structural design and novel appearance, holds 350-800 milliampere lithium electricity. Its volume is quite small, so ... and other audio output device.Product featuresAs the MP3 public speaker, the product is small size, convenient to carry, with noble ... . At this time, please charge in time.Product specificationBattery capacity: 350 mA-800 mA (do not dump it in fire)Horn ...