These Tomy walkabout platinum digital baby monitors are interference free with 120 auto select channels, however privacy is guaranteed with the inbuilt scrambling device with 65,000 combinations. This baby monitor has a 300m range with 2-way communication. Additional features also include a sound sensitive light display and vibration alert for noisy environments. The LCD display shows a recording of max and min temperatures in the babies room, along with a last feed timer and recharging docking station.