2. Important information5Sub monitor batteriesPreventing leakage, heat generation, rupture,or accidentsR Use only the battery(ies) specified.R Do not open or mutilate the batteries.Released electrolyte from the batteries iscorrosive and may cause burns or injury to theeyes or skin. The electrolyte is toxic and maybe harmful if swallowed.R Charge the batteries provided or identified foruse with the product only, in accordance withthe instructions and limitations specified in thisdocument.R Do not heat batteries or dispose of batteries ina fire.R Do not touch the ends of batteries ( , ) withmetal objects.R Handle the batteries with care. Do not allowconductive materials such as rings, braceletsor keys to touch the batteries, otherwise ashort circuit may cause the batteries and/or theconductive material to overheat and causeburns.R Only use the specified charger and AC adaptorto charge the batteries. Failure to follow theseinstructions may cause the batteries to swell orexplode.2.2 Important safety instructionsWhen using this product, basic safety precautionsshould always be followed to reduce the risk of fire,electric shock, or personal injury.1. Do not use this product near water. For example,near a bathtub, wash bowl, kitchen sink, or laundrytub, in a wet basement, or near a swimming pool,etc.2. Use only the power cable, AC adaptor, and batteriesindicated in this document.Do not dispose of the battery(ies) in a fire. They mayexplode. Check with local codes for possible specialdisposal instructions.SAVE THESE INSTRUCTIONS2.3 For best performanceLocation/avoiding noise (main monitor/submonitor)The main monitor, sub monitor, and other compatiblePanasonic units use radio waves to communicate witheach other. (The product operates in the frequencyrange of 2.4 GHz and 2.48 GHz with a peaktransmission power of 100 mW (max.).)R For maximum coverage (approx. 100 m) and noise-free communications, install your main monitor:– at a convenient, high, and central location withno obstructions between the sub monitor andmain monitor in an indoor environment.– away from electronic appliances such as TVs,radios, personal computers, wireless devices, ordigital cordless phones.– facing away from radio frequency transmitters,such as external antennas of mobile phonestations. (Avoid installing the main monitor neara window.)R If you use the sub monitor near a microwave ovenwhich is being used, noise may be heard. Moveaway from the microwave oven and closer to themain monitor.R Coverage and voice quality depends on the localenvironmental conditions.Environment (main monitor/sub monitor)R Keep the unit (main monitor/extension monitor andsub monitor) away from electrical noise generatingdevices, such as fluorescent lamps and motors.R The unit should not be exposed to direct sunlight.R The unit should be kept away from heat sourcessuch as radiators, cookers, etc. It should not beplaced in rooms where the temperature is less than0 °C or greater than 40 °C. Damp basements shouldalso be avoided.R Do not install the product in locations that aresuspect to sudden changes in temperature. Failureto do so may cause condensation to form on theproduct causing malfunction.R Even when the main monitor and sub monitor areused within 100 m of each other, obstructions cancause weak signals, noise, interruptedtransmissions, distorted images and slow imagerefresh rates. Obstructions can include:– Metal doors or metal shutters.– Heat insulation including aluminium foil.– Concrete walls or walls made of galvanized ironsheet.– If the sub monitor is being used in a differentbuilding, or a different part of the house, i.e. adifferent floor to the where the main monitor hasbeen installed.– Many walls.– Double insulated glass windows.R Some types of hearing aids may receive noise fromwireless communications between the main monitor,sub monitor, and other compatible Panasonic units.R Operating the unit near electrical appliances maycause interference. Move away from the electricalappliances.R In areas surrounded by a high electrical field,disturbances may occur in the unit's image orsound.