Baby Monitor Graco/ Safety 1st/ Fisher-Price: All models very similar in specs (sorry no personal requests). Baby Sound Monitor. Audio Operating Distance: Approx 400′. Includes Monitor; Receiver. Accessories Include 2 AC Adapters. Number of Channels: 2 to Minimize Interference. Features Volume Control; Indoor/Outdoor Coverage. Super-Sensitive Microphone Detects Smallest Sounds. Colors and styles may vary.