Red Sound micro bpm Owner's Manual page 2

WARNING!
AVOID USING THIS PRODUCT AT HIGH VOLUME LEVEL
SETTINGS FOR EXTENDED PERIODS OF TIME!
The amplifier section of the MICRO BPM is capable of delivering very
high volume levels to the connected headphones which, if sustained
over long periods, could cause damage to your hearing. Also, the
drivers in the connected headphones may be damaged if high output
levels are maintained.
Always use the lowest, most comfortable volume level setting to suit
the particular environment. We cannot be responsible for the
improper use of this product!