This can be placed on the floor or attached to most baby cribs. This mobile supports mothers with its sound sensor function, which starts when the baby cries. (It can also be used as a regular mobile.) You can choose from IC melodies and womb sounds. ・IC Melodies: 6 songs (♪The Sandman, Nocturne, Jocelyn's Lullaby, Traumerei, Chopin's Lullaby, Brahms' Lullaby) ・Womb Sound (♪The sound of a mother's womb, which comforts the baby) About this product: Uses 4 AA alkaline batteries. Size: W265 x D280 x H560mm Weight: 1.35kg The original box and instructions have been discarded. The product will be cleaned with alcohol and packaged with waterproof and shock-resistant measures before shipping. I purchased it new and used it with care, so there are no major scratches, but there is a sense of use, so please refrain from purchasing if you are sensitive to this.