Your secret is safe with the Frozen Electronic Secret diary. Use the magical pen to write down all your secrets and close the Diary to keep them safe; If you want to read the secret messages, open the diary up using the special electronic key fob and shine the key fob light onto the message to make it appear. Dont worry, no one else will be able to sneak a peek at your secrets, the diarys alarm will activate when anyone but you tries; Keep all your secrets safe; Includes electronic key fob; Suitable from birth. For ages 3 years and over. Batteries required: 3 x AAA (not included) and 3 x button cell . WARNING(S): Not suitable for children under 3 years old. Only for domestic use.