●아기 손 자장가 - 아기를 위한 자장가, 아기 수면 is an Android app designed to support baby sleep and emotional development through carefully crafted lullabies. It features multiple playback options, including a timer function, and highlights the soothing effects of music inspired by a mother's heartbeat. This app not only helps babies to sleep better but also strengthens the bond between parent and child. Experience the calming and therapeutic power of lullabies with this essential tool for nurturing babies.