The Hush Freedom is a great everyday Audio Baby Monitor with crystal clear sound and up to 250m wireless range Great everyday Audio Baby Monitor with crystal clear sound and up to 250m wireless range. Model number: bm119. Up to 250 meter wireless range 2.4ghz crystal clear sound adjustable volume control LED sound level indicator mains and battery operation out of range warning low battery indicator belt clip. Up to 250 meter wireless range 2.4ghz crystal clear sound adjustable volume control LED sound level indicator mains and battery operation out of range warning low battery indicator belt clip. Monitor features: Digital signal. Up to 250m range and out of range indicator. 1 parent unit included - portable. Temperature display - for added peace of mind. Video features: Black and white screen. Power features: Parent unit: mains/battery. Low battery indicator. Parent unit includes mains adaptor - batteries required for parent unit 1 x AA (not included). Baby unit includes mains adaptor - (not included).