How To Use:
1. Lie flat with a cushion pillow and keep your legs straight and relaxed.
2. Rub gel or water to the lower area of the stomach.
3. Turn the doppler on and slowly — really slowly — move it around until you can hear the heartbeat.
4. The earlier it is in your pregnancy, the lower you'll likely have to go. Try below your belly button.
5. Be aware that you'll also hear your own heartbeat and the pulse of an artery.

Specifications:
✓ Probe Frequency: 2.5 MHz +/-10%
✓ Error Range: +/-2 beats per minute
✓ Rate Display Range: 30-240 beats per minute
✓ Size: 130mm (L) x 100mm（W) x 36mm(H)
✓ Weight: 250g
✓ Battery, 2*AA alkaline battery (not included)

Package Includes:
— 1 X Portable Baby Doppler Fetal Heart Rate Monitor