... 21.3KGProduct introductionMini card voice box, with small pocket size and wonderful sound quality which is ... milliampere lithium electricity. Its volume is quite small, so it is easy to be taken along ... with a powerful AUX audio input, it cannot only be used as a computer speaker, but also can ... device.Product featuresAs the MP3 public speaker, the product is small size, convenient to carry, with ...