The audio baby monitor can provide clear and interference-free sound transmission and effectively eliminate background noise, ensuring that you can clearly hear your baby's movements even in different rooms , with a maximum communication distance of up to 400m. Equipped with a sound indicator and a two-way intercom function, you can understand the sound intensity in the baby's room through the LED indicator light of the parent unit, and have two-way conversations with the baby through the built-in intercom to keep an eye on the baby's condition at any time. Infrared night vision can automatically switch to night vision mode when the light is insufficient. There are no red dots in the dark, ensuring that the night vision picture is clear while protecting the baby's peaceful sleep. Suitable for night use. Both parent and baby units can control the night light switch to provide a safe sleeping environment for babies. Offering adjustable sound sensitivity, you can choose to hear sounds from your nursery continuously or only receive sounds if they exceed a set threshold. The microphone sensitivity of the baby unit can be adjusted through the parent unit to timely response to your baby's every need. Note: Without AA battery Material: plastic colour: White Package Contents: 1 set x audio baby monitor1*parent end and 1*baby end Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.