You always want the confidence that baby is resting safe and sound. That's why; our secure coverage digital monitor operates on a 900 MHz frequency, so you can clearly hear even the quietest whimper, without fear of interference from your phone or wireless network. With its extended 2,000 feet range, you'll have plenty of room to roam. Includes two parent units and one nursery unit. Nursery unit uses optional 3-AAA batteries for battery backup

• You always want the confidence that baby is resting safe and sound.
• That's why our secure coverage digital monitor operates on a 900 MHz frequency, so you can clearly hear even the quietest whimper, without fear of interference from your phone or wireless network.
• With its extended 2,000 feet range, you'll have plenty of room to roam.
• Includes two parent units and one nursery unit. Nursery unit uses optional 3-AAA batteries for battery backup, these batteries not included.
• Secure digital technology for optimal clarity, performance and privacy
• 900 MHz frequency means no interference from phones and electronics
• Extended 2000 feet range gives you plenty of room to roam
• Exclusive Graco vibration notification technology lets you feel baby's call
• Low battery alarm reminds you to charge the parent unit