Goui O'Clock A multipurpose wireless charger clock Details: Input: 9V = 1.67A, 5V = 3A 10W is the output. 1200mAh is the capacity. 2.4 GHz is the radio frequency. Power Rated for the Speaker: 5W Playback duration: 3 hours; charging duration: 2 hours; measurements: 137x131x93 mm; weight: 465 g