Please read these instructions, keep them and follow them. Do not tamper with your tuner. Do not attempt to disassemble or open your tuner. Substances contained in this product and/or its battery may damage the environment and/or human health if handled and disposed of improperly. Do not expose your tuner to extremely high or low temperatures. Do not leave your tuner in direct sunlight for an extended period of time. Do not leave your tuner near open flames. Do not dispose of your tuner in a fire. The battery could explode. Do not use abrasive cleaners to clean your tuner. Do not place your tuner in a dishwasher, washing machine or dryer. Regardless of what reasons cause unit damage, please ask for the maintenance personnel to repair it.