Ultra-sensitive optical sensor with wide 45° to 90° reading angle tolerance
Direct Shenzhen factory · OEM / ODM available
Ergonomic Smart Optical Audio Reading Pen (OID3 / OID4 Sensor)
Instant 0.2s optical recognition for multilingual picture books, sound flashcards & audio wallcharts.
Our flagship educational hardware. Developed with proprietary optical decoding firmware, TalkingPenFactory reading pens pair seamlessly with custom-printed soundbooks, educational cards, and bilingual story materials for European and US publishing clients.

Designed for screen-free early learning
A complete product platform, not just a single SKU.
This model is engineered to help publishers, toy importers and educational brands create a ready-to-sell learning experience. From reliable core technology to packaging and localized content, the manufacturing program can be configured around your market.
Child-safe decibel-capped speaker (strictly under 75dB meeting EU EN71-1:2014 acoustic standards)
Built-in microphone for teacher & parent interactive voice recording
3.5mm stereo headphone jack for silent classroom & travel listening
Auto shut-off after 5 minutes of inactivity for power preservation
Production-ready engineering detail
- Memory / optical system
- 16GB / 32GB high-speed flash storage (stores up to 1,200 audiobooks)
- Audio languages
- British English, American English, German, French, Spanish, Italian, Multilingual switch
- Power & battery
- 500mAh Li-ion battery (over 6.5 hours continuous reading)
- Dimensions & weight
- 155 x 30 x 28 mm | 58g child-grip ergonomic shape
- Materials
- Drop-proof virgin ABS + food-safe soft silicone ear/clip accents
- Recommended age
- Ages 2 - 9 years (Toddler, Preschool & Early Elementary)
- Charging / transfer
- USB Type-C Fast Charge & PC Data Transfer Port
Build your own market-ready version.
Choose the commercial scope that fits your launch: private-label branding, localized audio, retail packaging or a full custom product program with engineering support.
For approved logo, color and packaging artwork on available platforms.
Custom mold character caps (Bear, Bunny, Robot, Dinosaur, Custom Brand Mascot)
Pantone casing color matching & silk screen / laser branding
Audio file mastering, OID optical dot matrix authoring & firmware pre-loading
Custom gift box with cradle stand and branded Type-C cable
Documentation aligned to your destination market.
We support pre-shipment quality control and can prepare product specifications, production records and relevant test documentation for your EU or North American launch process.


