Heart rate and/or blood oxygen level monitoring system compatible with portable media players consisting of a sensor-equipped ear piece or headphones, a data processor, operating system software, and an electronic display

'and/or':3 'blood':4 'compat':9 'consist':14 'data':25 'display':33 'ear':20 'electron':32 'equip':19 'headphon':23 'heart':1 'level':6 'media':12 'monitor':7 'oper':27 'oxygen':5 'piec':21 'player':13 'portabl':11 'processor':26 'rate':2 'sensor':18 'sensor-equip':17 'softwar':29 'system':8,28

MPULSE3

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