# Pair card reader

To pair the IDTech VP3300 card reader with the device:

{% stepper %}
{% step %}
Turn on **Bluetooth** in the iOS device settings.

Bluetooth Low Energy (BLE) technology seamlessly pairs the VP3300 card reader with the iOS device automatically.
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{% step %}
Install your app on the device.

The following table explains the Bluetooth settings on the VP3300 card reader:

<table><thead><tr><th valign="top">Indication</th><th valign="top">Mode</th></tr></thead><tbody><tr><td valign="top">The Bluetooth LED is off.</td><td valign="top">Sleep</td></tr><tr><td valign="top">The Bluetooth LED flashes a steady blue light.</td><td valign="top">Stand-by</td></tr><tr><td valign="top">The Bluetooth LED flashes a blue light every five seconds.</td><td valign="top">Paired and connected</td></tr></tbody></table>
{% endstep %}
{% endstepper %}

{% hint style="warning" %}
Ensure the card reader has a fully charged battery before pairing it with the device.
{% endhint %}