-LRB- CNN -RRB- -- The parents of a missing 10-month-old Missouri girl issued an impassioned plea for her return Wednesday , as police said they have found little to go on in investigating her disappearance . `` We just want our baby back , '' Deborah Irwin , clutching a teddy bear and crying , said of her daughter Lisa . `` Please bring her home . Our two other boys are waiting for her . Please , just drop her off anywhere , we do n't care . Just somewhere safe where she can come home , please . '' Her husband , Jeremy , urged anyone with information to call police . `` Anything , even the smallest information , could help lead to her return , '' he said . Lisa Irwin was last seen at about 10:30 p.m. Monday , asleep in her crib , Kansas City , Missouri , police said . Police were called to the home at about 4 a.m. Tuesday . `` It appears the suspect entered/exited through a bedroom window , '' authorities said in a statement . `` Evidence at the scene leads police to believe the child has been abducted . '' Jeremy Irwin discovered the child missing when he arrived home from work , CNN affiliate KSHB reported . Police have said the Irwins are not considered suspects in Lisa 's disappearance . Police Capt. Steve Young on Wednesday told reporters the family has been cooperative from the beginning of the investigation , but `` everything is still on the table . We have n't ruled anything out . '' He said investigators `` really have n't developed any good , hard information that we can go forward with . '' Nearly 50 tips have been received through a tip hotline , he said , but not all of them have been pursued , as some of them have been vague -- a person calling to report a child seat seen in a car , for instance . `` I know everybody 's hearts are in the right place , but that 's not anything we can do anything with , '' Young said . Police have conducted more than 300 `` knock-and-talks '' and searches of residences in the area , and more than 300 officers were searching for Lisa . There have been three searches of a wooded area near the family 's home , he said . `` I promise you , if there 's anything we think we can be doing , we 've probably done it two or three times already , '' Young said . An Amber Alert was issued for Lisa early Tuesday but has been canceled . `` Although the investigation and search for Lisa Irwin continue , an active Amber Alert is no longer necessary in this case , '' police said . However , Lisa is still considered missing and endangered , according to authorities . Lisa is described as 30 inches tall with blue eyes and blond hair , police said . She weighs between 26 and 30 pounds . She was last seen wearing purple shorts and a purple shirt with white kittens on it . She has two bottom teeth , a small bug bite under her left ear and a `` beauty mark '' on her right outer thigh . She currently has a cold with a cough , police said . CNN 's Ashley Hayes contributed to this report .