Fisher Price Time for Sleep 900 MHz Monitor Dual The ‘Better’ Monitor from Fisher-Price features a new contemporary look with the addition of a nap timer and clock to already-great 900 Mhz performance. It features 900 ft range and 4 change to ensure a clear channel can be found. A digital nap time and clock keep track of baby’s sleeping habits. The nightlight on the transmitter has a time out Low battery indicator and nightlight indicator on the receiver Sounds lights on both sides of the receiver so mom and can ’see’ sounds even when out of earshot. Volume is easily adjusted with a mom-friendly knob, and the receiver can be powered both AC/DC 2 receivers let Dad or Grandmas listen in too – or allow to have one handy in another room All plugs have energy saving adaptors