Having weeks annoyed with cheap baby phoneen and their defects, we have bought this product and are fully satisfied. Small enough to also to geh'n well to travel, battery lasts all night, our baby sleeps loosely times 12 -14h by. Good coverage, cellar and also the make dog pee goes out super. About the blechernden sound of the speaker I can not complain, for me sound like good. Top that you all can on and off points and adjust on the parent unit, such as timers. Night light, starry sky, and music. Minus point it's that you can not adjust the volume of the baby unit, otherwise recommended top unit only