user50593: As the question says, i can't figure out where the sound comes from on this board that i bought, nothing on the manuals and can't see any speaker on the board... It is a "RFID Proximity Entry Door Secure Lock Access Control System"
Thanks.



user11649: That looks like a piezo buzzer, the component that had the sticker on it. It's likely louder now, with the sticker removed.

50593: <p>As the question says, i can't figure out where the sound comes from on this board that i bought, nothing on the manuals and can't see any speaker on the board... It is a "RFID Proximity Entry Door Secure Lock Access Control System"</p>

<p>Thanks.</p>

<p><a href="https://i.stack.imgur.com/uYOUd.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uYOUd.jpg" alt="enter image description here"></a></p>

<p><a href="https://i.stack.imgur.com/h56nl.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/h56nl.jpg" alt="enter image description here"></a></p>
 11649: <p>That looks like a piezo buzzer, the component that had the sticker on it. It's likely louder now, with the sticker removed.</p>
