Features: Stable structure, exquisite metal grill. Powerful output power and excellent sound quality. Suitable for both indoor parties and outdoor sports. Auxiliary support features all digital audio devices with 3.5mm jacks. 500mA large capacity built-in rechargeable battery, playing time at least 5 hours. Passed the environment simulation test, you can use it in the rain without any problems. Multifunctions: BT music player, BT hands-free answering, RGB diffuse color light, automatic radio.