[. . . ] [. . . ] please dispose of the product and the batteries in a proper collecting and recycling point. To avoid an electric shock, please do not repair the product yourself, do not open it and never take apart any of its components; please do not use the product near heat and wet sources and do not touch it with wet hands; please make sure that there is no object or liquid that goes inside the product; do not cut, damage or place heavy objects onto the power cord. Disconnect the power cable from the wall outlet if the product malfunctions. Volume) 4 hours for first use, 3 hours on full charge Note: design and specifications are subject to change without notice. [. . . ] [. . . ]