lcd video mailer

Carte de voeux populaire de musique d'enregistrement vocal avec la pleine impression de la couleur 4C

Feature 1. Main components: Paper, speaker, PCB board, Button Cell, wires, IC, etc. 2. Can do pre-record greeting card/ recordable greeting card(you record your voice at your end,support re-record)/led greeting card, activated by a sliding switch, light sensor switch, push button, etc. 3. OEM/ODM music&design are welcome, send us in JPG, PDF, and AI format files 4. Send us your sound file in MP3 or WAV format 5. Music duration can be 1-270s 6. Use: when opening the card, it