Item:OEM Factory Supply Music Device with Book Model number:HXS-0001 Case size:225MM*90MM*20MM Power by:3PCS*AAA batteries Speaker:Dia 29MM 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:160G Certificates:Rohs CE Green Standards:Compliance with EU standard.