Unique acoustic construction- Unique downward-facing speaker cones bring you the ultimate surround sound. Internal passive disk for better bass enhancements Updated aesthetics- Electroplated case with a gradual fade finish 30-Hour battery life- Large 1800mAh battery capacity, a whole day's worth of music 3 EQ modes- Supports normal, Vocal, & outdoor modes, which is great for enjoying music & movies Support TWS dual-pairing- Pair two speakers simultaneously for left and right channels providing a stereo audio output Specification Material: ABS+PC  Wireless version: V5.0  Communication distance: 10m  Music playback time: 30 hours (70% volume)  Battery capacity: 1800mAh/6.66Wh  Rated input: DC5V⎓1A  Rated current consumption: 50mA  Charge time: About 2.5 hours  Frequency response range: 110Hz to 20kHz  Charging interface: Type-C  Suitable for: All wireless playback devices