[. . . ] Place the handset on the charger for about 7 hours before initial use. note: · The handset display may show "Please wait for 1 minute. " when the handset is placed on the charger if it is not registered to the base unit. [. . . ] If it is not on, press and hold {ic} for few seconds to turn the handset on. (No registration tone) N KX-TG5521 Press and hold {x} for about 5 seconds, until the registration tone sounds. Continue the operation even when the handset display shows "Please wait for 1 minute. 4 With the handset still on the base unit, wait until a confirmation tone sounds and w is displayed. note: · If an error tone sounds, or if _ is displayed, register the handset according to the base unit's operating instructions. Answering system features are available only when this handset is registered to the KX-TG5521. To prevent severe injury and loss of life/property, read this section carefully before using the product to ensure proper and safe operation of your product. Failure to do so may cause electric shock and/or excessive heat resulting in a fire. Notice for product disposal, transfer, or return · This product can store your private/confidential information. To protect your privacy/ confidentiality, we recommend that you erase information such as phonebook or caller list entries from the memory before you dispose of, transfer, or return the product. Information for Users on Collection and Disposal of Old Equipment and used Batteries These symbols (1, 2, 3) on the 2 3 1 products, packaging, and/or accompanying documents mean that used electrical and electronic products and batteries should not be mixed with general household waste. For proper treatment, recovery and recycling of old products and used batteries, please take them to applicable collection points, in accordance with your national legislation and the Directives 2002/96/EC and 2006/66/EC. By disposing of these products and batteries correctly, you will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappropriate waste handling. For more information about collection and recycling of old products and batteries, please contact your local municipality, your waste disposal service or the point of sale where you purchased the items. Penalties may be applicable for incorrect disposal of this waste, in accordance with national legislation. For business users in the European Union If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. [. . . ] For business users in the European Union If you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. Information on Disposal in other Countries outside the European Union These symbols (1, 2, 3) are only valid in the European Union. If you wish to discard these items, please contact your local authorities or dealer and ask for the correct method of disposal. [. . . ]