There is an additional pull tab on this greeting card , if we don't pull this tab out , each time you open this greeting card, it will play a sound ,when you close this greeting card, it will stop playing sound . If we pull the tab out , when you open the greeting card, it will start playing sound non stop , even you close this greeting card , it won't stop playing sound . until the battery is dead . The card printing design and the sound can be customized , function can be customized too .
Specification:
Color: White
Material : Electronic part + Paper
Sound time: 2 seconds to 1 minute or customized
Working voltage: 3 button batteries (3.0-4.5V)
Play mode : slide tongue switch
PCB Board size: 46 * 27 * 10mm / 1.8 * 1.1 * 0.4in
Horn diameter: 40mm / 1.6in
Weight: approx. 20g
