1. Bluetooth speaker 2. Supports 6 hours playing 3. Quality music design, feel its difference 4. Simple but fulfilled fashion Features ItemDescriptionFrequency Range20~20K HzSensitivity95dBSendingMaximum 4dBConnectorDC In 5V(for internal Battery Charging)PowerBuilt-in Li-ion batteryCharging3~4 hoursPlayingAbout 8 hoursIndicators1x Blue LED(Stand-by and working)1x RED LED(Charging battery) ...