Explain: Bluetooth function audio New audio features, 360 surround sound quality and wireless Bluetooth connection liberate your phone. Mobile phone bracket function It can be used not only as a pen holder, but also as a mobile phone holder, so you can eat with the drama. use The blue indicator flashes when turned on and fully flashes when Bluetooth is connected. When the battery is low, the voice prompts that the charging red light is on and the charging is completely off. Specifications: Bluetooth: 5.0 Wireless transmission distance: 10M Battery model: 14500 Battery capacity: 500mah Built in voltage: 3.7V Playback time: 2 hours Speaker specification: 52mm Housing: plastic Product size: 158 * 121 * 133mm Package includes: 1 * Bluetooth speaker 1 * charging cable