Large Screen : 1.8 '' screen with a more intuitive and easy-to-read curve. Easy to Use :Easy to use digital display at home. Lightweight and Portable Built-in : Speaker with volume control, on / off switch, volume control, headphones and speaker are all doable. Easy and Convenient to Use : With large backlit LCD screen, high fidelity, clear sound Nice sound : Listening to your baby's sounds is like music to a mother's ears. Package : 1 x Main Monitor 1 x Ultrasonic Transducer 1 x User Manual How to use : 1.Before using it for the first time, make sure 2 batteries are in. 2.Press the power button to power on, then adjust the volume. 3.Lie flat with a cushion pillow, keep legs straight and relax.

Simple design for easy to use at home. High sensitivity, 0 radiation, convenient measurement (low power, 0 micro radiation, high performance, intelligent dynamic monitoring). 3 Display mode on backlit LCD display, and built-in clear speaker with volume control and earphone port available for listening quietly. The built-in speaker with volume control and backlit LCD display help to find the position quickly. No one wants to miss the growth of kids. Listening to your baby's sounds is like music to a mother's ears. This one made your husband feel like he can be a bigger part of this process, so you love being able to experience this together at home!