Owner's Manual
Page 2
...consult an audiologist. The average life span of household type batteries in the ears, you experience any power supply or adapter other than one described in overheating and battery case rupture. When installing batteries, do not mix batteries... qualified service representative to update existing units. Some of producing sound levels that are not covered by Yamaha. Make sure that the battery being charged is a rechargeable type and that is approximately five years. ... Purchase Date 92-BP (bottom) PLEASE KEEP THIS MANUAL 2 PSR-E203/YPT-200 Owner's Manual
...consult an audiologist. The average life span of household type batteries in the ears, you experience any power supply or adapter other than one described in overheating and battery case rupture. When installing batteries, do not mix batteries... qualified service representative to update existing units. Some of producing sound levels that are not covered by Yamaha. Make sure that the battery being charged is a rechargeable type and that is approximately five years. ... Purchase Date 92-BP (bottom) PLEASE KEEP THIS MANUAL 2 PSR-E203/YPT-200 Owner's Manual