- Original Kekz audio chip model DE-UNS-4156, designed for children from 3 years old - Includes 17 lullabies and classical melodies to help with sleep and relaxation - Compatible with Kekzhörer headphones, easy installation and immediate use - Volume limited to 85 dB to protect children's hearing, according to pediatric recommendations - No Internet connection, downloads, or mobile devices required - Promotes autonomy and intuitive control in audio use - Screen-free, ideal for encouraging imagination and rest - Approximately 54 minutes of music and bedtime stories - Exclusive Kekz content: songs, stories, and educational audio games - Compact and lightweight format, perfect for travel and daily use