Item:Hot New Mini Doll Voice Recorder Model number:HXS-0017 Case size:42MM*42MM*22MM Power by:3*AG10 batteries Speaker:Dia 21MM Material :Plastic ABS Color:According to your requirement Music duration:1-360 secs or even more if needed Music formate:MP3/WAV Logo:Custom logo is available N.W :18G Certificates:Rohs CE Green Standards:Compliance with EU standard.