【Wireless Control & Intelligent Timing】 Supports BT wireless connection, you can connect the baby crib mobile with your smartphone to switch songs, close music, light and rotation anytime; To save energy, the baby crib mobile will automatically shut off if there is no operation for 30mins. 【Adjustable Volume & Mute Option】 The baby crib mobile has a volume control button with mute option, you can have it very quiet or at a reasonable level to help baby fall asleep fast or stay asleep. 【Help Baby's Development】 The baby crib mobile has 4pcs removable hanging toys with rattles, soft rubber edge and different colors, which can not only attract and entertain your baby, but also meet the needs of baby's hearing,tactile,fine motor and visual development. 【Easy to Assemble and Install】 With a C clip, you can fix the baby crib mobile to crib, bassinet, stroller, changing table, car seat and more easily. And the unique anti-slip knob allows you to attache the baby crib mobile to crib or other object with thickness less than 3.8cm/1.5in. Specifications: Material: ABS ' TPE ' PP ' Electronic Components Power Supply: 4 * 1.5V AA batteries(not included) Compatible Age: 0 Month' Item Weight: 1022g/ 2.3lbs Packing List: 1 * Baby Crib Mobile