Update: Alive again!
VTech Safe & Sound Digital Audio Baby Monitor with Two Parent Units – Link 
Amazon has this marked down right now to just $29.99. This was selling for $53.12 yesterday and is now at its lowest ever.
- This configuration includes two parent units (monitor) and one baby unit (audio monitor)
- DECT 6.0 provides crystal clear transmission, eliminating the annoying white noise you hear from analog monitors
- 5-level sound indicator – graphic bars on the parent unit indicate the level of sound in your baby’s room so you can visually monitor the noise level with the unit muted
- Sometimes all your baby needs is to hear the sound of your voice – comfort your infant with the 2-way talk-back intercom
- Rechargeable batteries provide parent unit with up to 18 hours of monitoring time on a single charge, or use two AAA batteries (not included)
- Go hands free with the belt clip on the parent unit – carry the parent unit everywhere you go without the hassle of holding it. The operating range of the parent unit is up to 1,000 feet outdoors or 150 feet indoors
- Parent unit can be set to beep if: (1) link between the parent unit and the baby unit is lost, and/or (2) rechargeable battery is low