Visual Stethoscope Landsea Visual stethoscope is a new hi-tech clinic medical instrument by introducing the micro PC technology. It has the stethoscope function and ECG signal monitor function. It can display the heart rate and the ECG wave directly through the LCD when stethoscoping the heart. Product Function Portable to carry Convenient to operate Stethoscopy function: clear and precise Real-time record and display the heart rate and ECG Optional set of ECG collecting sensitivity and wave move speed Freeze function: convenient to observe the heart rate and ECG Low electricity consumption, long battery life Calender display function Technology Specification Weight: 200g Power: 3V (2x1.5V) Battery: LR03-AAA Operating Duration: about 150 hours Battery Capacity Display: Display the alarming information while lack of electricity Automatically switch off: The switch will be off automatically in two minutes while no data input. Environment: Operating Environment 0?C-40?C; Storing Environment ?10?C-50?C Humidity: 25-95%