[. . . ] CITIZEN model SDC-888X is a dual-powered (high power solar + back-up battery) calculator operative under any lighting conditions. [. . . ] The symbol in this information sheet means that used batteries should not be mixed with general household waste. For proper treatment, recovery and recycling of used batteries, please take them to applicable collection points. For more information about collection and recycling of batteries, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items. Information on Disposal in other Countries outside the European Union. [. . . ] There is a separate collection systems for used electronics products in accordance with legislation under the WEEE Directive (Directive 2002/96/EC) and is effective only within European Union. [. . . ]