* 16 steps programmable volume settings
* Sound model: Heart, Lung, Heart and Lung
* Frequency Response: 20Hz - 20,000Hz
* Real-time record and display the heart rate and ECG
* Professional spo2 display with adult and neonate probe(option)
* TFT color LCD display (65536 color): 160*128pixels
* Accommodates infant, pediatric, and adult patients
* 4.2V Rechargeable Lithium battery
* Automatic switch off after 3 minutes from last button activation
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