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Venus Microcontrollers

Custom sound IC solutions

Applications

Sound Modules for Musical Greeting & Wedding Cards

Ultra-thin voice and melody playback that fits inside a folded card — built for India's festive card, invitation and corporate gifting industry.

Use case

Musical wedding and greeting card modules

One-time-programmed to your exact audio, ready to fit

Musical gift box and jewellery box modules

Greeting card and wedding invitation sound module application

What we supply

Venus supplies the sound engine as a component to OEMs — the programmed PCB or COB that fits inside your card or box — and, through our manufacturing partner network, can also offer select finished and private-label card and gift-box products for retail and gifting channels.

Greeting Cards

Support built around greeting cards & wedding cards use cases

Key considerations for selecting the right sound IC or module for this application.

Indian greeting card and wedding invitation printers work in tight formats and tighter timelines — a module has to slide into a folded card without adding bulk, trigger reliably the moment the card is opened, and survive courier handling across the country. Venus develops chip-on-board and thin-profile sound modules sized for exactly this use case, from birthday and festival cards to premium wedding and corporate invitations.

Wedding card season in India runs on volume and variety — the same base OTP module often needs a dozen different regional-language greetings, shagun tunes or family-specific messages layered onto it. Venus ships one-time-programmable modules loaded with your exact approved audio, so one hardware platform can serve many card designs without re-tooling while staying production-ready from dispatch.

For premium gifting — jewellery boxes, sweet boxes, corporate hampers and festival gift sets — we also supply slightly larger COB and speaker combinations where a bigger, richer sound is part of the unboxing experience. Whatever the format, our focus stays on consistent trigger behaviour and clean audio at the low unit cost printers and gifting brands need to hold their margins.

Why buyers use Venus here

Component supply for OEM integration

Playback tuned for the exact end-use environment

Prototype validation before production release

Next step

Share the target format, playback length, voltage, and trigger style. Venus can then recommend the right IC or board format for your product.

OEM component supplyCustom audio programmingPrototype validation

FAQ

Greeting Cards questions buyers usually ask

Quick answers to common questions about this application.

Do you print or manufacture the cards?

No — we provide only the thin PCB sound module for your card manufacturer to assemble. Through our manufacturing partner network we also offer select finished, private-label musical cards and gift boxes for retail and gifting buyers.

Can the module be re-recorded with a custom message?

No — Venus supplies one-time-programmable modules loaded with your exact approved audio before shipping.

What triggers the sound — opening the card or a button?

Both trigger types are supported, matched to your card's mechanical design.

Need a quote for your greeting cards requirement?

Send the application details to Venus and get guidance on the right IC, PCB format, and playback setup.