- Material: ABS plastic housing<br />- Diameter: 7.5cm<br />- Output Power: 4W (max.)<br />- Working Time: 2~8 hours<br />- Built-in 1 x 18650 rechargeable battery (3.7V 2200mAh)<br />- Powered by USB port or included AC adapter<br />- Charging Voltage: DC 5V<br />- Charging Current: 1000mA<br />- Charging Time: 4~5 hours<br />- Accessories:<br />- 1 x 110~240V Power adapter (2-flat-pin plug)<br />- 1 x USB charging cable (94cm)<br />- 1 x Chinese manual<br />&nbsp;<p></p>                                                                                                                                Dimensions: 4.41 in x 3.54 in x 1.38 in (11.2 cm x 9.0 cm x 3.5 cm)<br />Weight: 5.54 oz (157 g)<br /><br />