31Nortel Networks WLAN Handset 2210/2211 User GuideWLAN Handset, headset, batteries, and chargersThis section contains information about:• “Cleaning your WLAN Handset” on page 31• “The headset” on page 32• “Battery packs” on page 33• “Desktop Charger” on page 35• “Gang Charger” on page 37• “Clean the Desktop Charger” on page 38• “Important Safety Instructions and Product Information” on page 39Cleaning your WLAN HandsetThe WLAN Handset occasionally must be cleaned to maintain appearance. In general, wiping thehandset surface with a clean water-dampened cloth or paper towel removes most films or residues.If more rigorous cleaning is required, you can use:• A mild detergent solution. Be sure to wipe away any detergent residue with a plainwater-dampened cloth.• Any general-purpose household glass and surface cleaner. Do not spray the handset directly.Spray the cleaner on a soft cloth or paper towel, then wipe the handset.• Pre-treated cloths, like those used for eyeglasses or cameras.• Pre-moistened towelettes. Avoid those containing lanolin or aloe, which leave a slipperyresidue.• Isopropyl alcohol, applied by a damp cloth or paper towel. When using alcohol, do not rub thekeypad characters vigorously, as this will significantly degrade legibility.If the headset connector becomes dirty, you may experience a scratchy or intermittent signal. Toclean the connector, dip the padded end of either a wooden- or paper-handled cotton swab inisopropyl alcohol. Gently insert in the connector and twist, repeating several times. If available,blow compressed air into the connector to clear debris.IMPORTANT!• Do not use furniture polishes, waxes, or plasticizer-based cleaner.• Do not use lanolin, aloe, glycerin, or other skin care products.• Do not apply any solvent such as acetone or mineral spirits.• Do not directly spray or immerse the handset.