- Sony 900MHz baby monitor dual receiver bundle- Includes one transmitter and two receivers- Built-in rechargeable battery in the receiver- Voice activation mode- Out of range indicator- Water resistant receiver (not meant to be immersed in or come into continuous contact with water)- Belt clip- AC/DC operation (operates on both your standard household current or supplied rechargeable batteries)- 900MHz technology extends the range of the babycall monitor allowing you take the receiver farther from the nursery and still hear activities in the nursery- 27 channels minimize interference : the babycall monitor uses the FM transmission system with channel selector to locate the clearest channel, helping to eliminate interference for clearer communication- 5 Sound-Sensor activity lights : alerts you when your baby is making sounds, when the receiver is out of range, and even when the battery is low- Flexible round antenna system- Speaker type : mono- Weight : transmitter 9 oz; receiver : 5.63 oz- WhiteSYNTM910DUAL