We supply high quality SD memory cards with encrypted one-time content of English listening examination to English language schools. The content is encrypted to the card and it can only be played on a specific audio player appointed times during examination.
These exam cards are 100% tested on customer's players before shipment to ensure a zero failure rate.
We supply high quality SD memory cards with encrypted one-time content of English listening examination to English language schools. The content is encrypted to the card and it can only be played on a specific audio player appointed times during examination.
