> For the complete documentation index, see [llms.txt](https://docs.xplorpay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.xplorpay.com/guides/mobile-emv/idtech-vp3300/pair-card-reader.md).
# 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.
{% endstep %}
{% step %}
Install your app on the device.
The following table explains the Bluetooth settings on the VP3300 card reader:
Indication
Mode
The Bluetooth LED is off.
Sleep
The Bluetooth LED flashes a steady blue light.
Stand-by
The Bluetooth LED flashes a blue light every five seconds.
Paired and connected
{% endstep %}
{% endstepper %}
{% hint style="warning" %}
Ensure the card reader has a fully charged battery before pairing it with the device.
{% endhint %}
---
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