Philips Avent DECT Baby Monitor with Temperature Sensor uses DECT technology and it works in zero interference from any other transmitting product, the product can be other baby monitors, cordless phones or mobile as well. It works in data encryption mode that gives a protected connection to make sure that you are only the person who is listening to your baby sound. When we talk about sound quality of this product then sound quality is of high level which is clear in listening to, and the sound is sweet too which won’t let you annoying from hearing the voice of your baby. You can hear every tiny giggle, gurgle and hic-up clearly. DECT technology offers high quality of sound to hear your child anytime you want. Its indoor range is up to 50 meters and outdoor range is up to 300 meters. The range can be different for different areas, location, clear signal and other factors that cause interference. It can be operated with rechargeable battery too, it means it is portable and it gives you flexibility for mobility as well.