Features 500m range automatic channels search belt clip on the receiver vox function, voice activated 2 alarms, visual and sound battery level indicator frequency 865mhz megahertz 3xaaa batteries or mains operated adapters included led display digital volume control low battery alert digital green technology 33x less waves than normal digitally adjustable volume adjustable microphone sensitivity with its simple and funvtional design the babymoov easy care alert you to any disturbance in the night with crisp clear uninterrupted communication, you are able to digitally adjust the volume settings to suit your needs, if you child is asleep during the day, all you need to do is clip your receiver to your belt or carry it with its impressive 500m range you are free to go about your day whilst always being able to hear what is going on and around you child. The digital green technology means there are 33x less waves being transmitted which reduces the risk and creates a safer sleep enviroment. With its low power output, waves are only emitted at a 2.99 mega watts, far below the average of 25mw from the standard set up for this technology. Also with thie easy care you will be alerted if and when the battery get too low or you are out of range either by noise or by the led display. With its zero interference technology once it is set up you dont need to worry about disruption or interference. With its led sound level meter even with the volume on low you will still be able to see how loud your child is being. Also with the vox system voice activated system you can choose between 2 settings, full time audio or voice activated to save battery life if you decide to not plug it into the mains. With its light and compact feel you dont have to carry a heavy receiver around just clip it onto your belt with the handy belt clip and go about your day knowing that no matter what happens you will be able to hear your baby.