Ultrasound Technology: Uses high-frequency sound waves to detect fetal heartbeats.
Handheld Design: Portable and easy to use, allowing for convenient monitoring.
Audio Output: Provides audible sound of the fetal heartbeat, allowing parents to hear their baby's heartbeat.
Probe: Uses a probe to detect fetal heartbeats, often with adjustable sensitivity.
Frequency Range: Typically operates within a specific frequency range (2-5 MHz) to detect fetal heartbeats.
Battery-Powered:  battery-powered, making them portable and convenient.
Rechargeable: it can be charged and used without battery.
Recording Capability: Allows users to record the fetal heartbeat for later playback or sharing.
Backlight: Enables use in low-light environments.
Probe Markers: Helps users locate the fetal heartbeat more easily.