Nokia BH 600 User Guide - Page 8

multifunction key when no call in progress, and proceed as described in the user guide of your phone. To answer or end a call, briefly press the multifunction key. If you do not want to answer the call, press the multifunction key. To answer another call during a call (and put the active call on hold) or switch between the two calls, press the multifunction key. ENGLISH Adjust the earphone volume Press the plus key (+ ) to increase or the minus key (-) to decrease the volume. Mute the microphone Press both volume keys at the same time during a call. When muted, the headset beeps at regular intervals. To unmute the microphone, press both volume keys at the same time, or end the call. Battery information Your device is powered by a rechargeable battery. The battery can be charged and discharged hundreds of times, but it will eventually wear out. Recharge your battery only with Nokia approved chargers designated for this device. Unplug the charger from the electrical plug and the device when not in use. Do not leave a fully charged battery connected to a charger, since overcharging may shorten its lifetime. If left unused, a fully charged battery will lose its charge over time. Never use any charger that is damaged. Leaving the device in hot or cold places, such as in a closed car in summer or winter conditions, will reduce the capacity and lifetime of the battery.