Portable Fetal Ultrasound Device with built-in headphone jack JSL-T501 in blue color. This fetal Doppler device allows safe listening to your unborn baby's heartbeat sounds at home.

• High sensitivity, accurate measurement, safe material
• Digital LCD display with backlight, easy to read
• Operating frequency: 3.0 MHz
• Smart noise reduction
• No radiation for mother and baby
• Built-in speaker or headphone jack for listening
• Adjustable volume
• Mini size, handheld design, easy to use
• Portable and lightweight
• Power supply: 2 x AA batteries (not included)
• Automatic shut-off after about 1 minute to save battery

Specifications:

• Material: ABS
• Display: Digital LCD with backlight
• Operating frequency: 3.0 MHz
• Operating mode: Continuous
• Measurement range: 65-210 bpm, ±2 bpm
• Analysis accuracy: 1 bpm
• Built-in speaker: 50mm
• Headphone jack: Yes
• Waterproof sensor: Yes
• Auto power-off: 60±10 seconds
• Power supply: 2 x AA batteries (not included)
• Screen size: 128 * 65 * 30 mm / 5.04 * 2.56 * 1.18 inches
• Sensor size: 105 * 35 mm / 4.13 * 1.38 inches
• Item weight: 150g / 5.28oz

The package includes: 1 x Fetal Doppler, 1 x User manual (English).