Fetal Heartbeat Monitor Household Rechargeable Pregnancy Baby Heartbeat Monitor Condition: Item Type: Fetal Heartbeat Monitor Material: ABS Power Supply: 1pc 6F22 Rechargeable Battery (Not included) Use Method: 1. Pregnant women lying flat, find a more comfortable position, straighten their legs at the same time, the mood is relaxed, so that the fetal heart sound can be heard more easily. 2. Daub coupling agent, daub coupling agent on the belly of pregnant women, close contact the probe with the skin, open the device, put the probe on the belly to stay, and start to find the fetal heart position 3. Find the location of the fetal heart. Place the probe close to the abdominal wall, and use a little soft force to prevent the air in the fetal head and belly from causing noise. 4. After listening to the fetal heart to find the position of the fetal heart, you can hear the sound of the fetal heartbeat. After hearing the stable and continuous fetal heart sound of the baby, it is advisable to leave the fetal heart probe standing for a period of time to receive steady and continuous fetal heart signal.