User manual AKG MERLIN 232

[. . . ] Be sure to dispose of used batteries as required by local waste disposal rules. Never throw batteries into a fire (risk of explosion) or household garbage can. When scrapping the equipment, remove the batteries, separate the case, circuit boards, and cables, and dispose of all components in accordance with local waste disposal rules. To dispose of the packaging, make sure to use a collection/recycling system provided for that purpose and observe local legislation relating to waste disposal and recycling. [. . . ] Unplug the charging cable (17) from the transmitter and disconnect the charger (16) from the power outlet. (The charging current is very low, so the transmitter or battery will not be damaged even if you forget to unplug the charging cable. Pull the protective foil out of the earphone in a straight line to establish electrical contact between the batteries and the electronics of the headphones. Check that the AC voltage stated on the charger is the same as that available where you are going to use the charger. if it is , connect the charger (16) to a convenient AC outlet. The Status LED (11) will be lit red or yellow to indicate the batteries inside the headphones are being charged. Unplug the charging cable (17) from the headphones and disconnect the charger (16) from the power outlet. (The charging current is very low, so the headphones or batteries will not be damaged even if you forget to unplug the charging cable. 3 Discharging Batteries In order to maintain full battery capacity for as long as possible, discharge the batteries completely about once a month: 1. Switch the transmitter or headphones on and leave it/ them on the shelf until the status LED goes out. If you feel that you need to recharge the supplied batteries more often than would be convenient, you may consider replacing the batteries with new AAA size 1. 1 Charging Batteries In order to ensure the longest possible service life for the rechargeable batteries, we deliver them uncharged. Therefore, charge the supplied batteries before first operating your headphones system. If you operate the transmitter or headphones on dry batteries, never try to recharge these batteries. This would cause serious damage to your transmitter or headphones. Dispose of dead batteries conforming to local waste disposal rules. Do not use any charger other than the charger supplied with your headphone system!Using other types of chargers or AC adapters may damage the transmitter and/or headphones. (If you insert the battery the wrong way, the battery will not be charged. Insert the new battery into the battery compartment (8), making sure the positive end of the battery will point toward the connector (5). (If you insert the battery the other way round, the transmitter will not be powered. Rotate the ear pad on the left-hand earphone through approximately 10° CCW to unlock the bayonet mount and remove the ear pad. [. . . ] Use a pointed object to lift the clear plastic cover at the cable end of the transmitter. To close the cover, press it down against the transmitter to the point that the cover clicks shut. To avoid being distracted from driving or jeopardizing the safety of other road users never use headphones while driving or cycling. Using headphones at high volume levels, particularly over extended periods of time, may damage your hearing. [. . . ]