Product built-in rechargeable lithium batteries. USB 4.5 V output can give most models of mobile phone charging. Stretching is bright with 6 LED lights lighting. There is a 1 w LED lamp lighting in front, the top is a colorful stage lights flashing, equipped with bluetooth speakers, sound quality, nice and clear. Products have a pair of stainless steel hooks on both sides, can hang in tents and other lighting. Is to listen to music go camping lighting and dancing party birthday party building atmosphere of good product.