---
title: "Open the Door via Bkey"
slug: "open-the-door-via-bkey"
updated: 2026-06-17T07:58:04Z
published: 2026-06-17T07:58:04Z
canonical: "knowledge.akuvox.com/open-the-door-via-bkey"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.akuvox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Open the Door via Bkey

Bkey is a Bluetooth-based Akuvox door-opening button. It enables users to open doors with a simple press without touching the device.

> [!NOTE]
> Note
> 
> The following models with specific firmware versions or higher support the Bkey feature:
> 
> | Model | Firmware | The tested longest distance of using the Bkey(meters) |
> | --- | --- | --- |
> | S539 | 539.30.10.203 | 3m |
> | S538 | 538.30.10.705 | 10m |
> | S535 | 535.30.10.233 | 5m |
> | S532 | 532.30.10.16 | 15m |
> | X916 | 916.30.10.202 | 15m |
> | X915 V2 | 2915.30.10.203 | 10m |
> | X912 | 912.30.11.7 | 3m |
> | X910 | 2910.30.10.240 | 3m |
> | R29C | 29.30.10.203 | 15m |
> | A03 | 103.30.10.105 | 5m |
> | A05 V2 | 205.30.10.124 | 5m |
> | A08 | 108.30.10.103 | 10m |

To use the Bkey, you need to enable the Bluetooth function and assign the Bkey to specific users for door opening. This article takes S539 as an example.

## Set up the Bkey Feature

1. Use the device IP to log into its web interface with the username and password, admin by default.
2. Go to **Access Control > BLE** interface. Enable the Bluetooth service.
3. You can set up the Bkey Trigger Signal. There are three ranges, 120dBm~-92dBm, -92dBm~-82dBm, and -82dBm~-77dBm.

For example, if you select 120dBm~-92dBm, users can press the Bkey to open doors within 3 meters away from the device.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-1724136509520.png)

## Assign a Bkey to a User

1. Go to **Directory > User** interface.
2. Click **Add** to create a user account.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-1724148695479.png)

1. Set the User ID and user name.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-731F7MEX.png)

1. Find the **RF Card & Bkey** part. Click **Obtain** and press the Bkey button. The code will be automatically acquired.

The code reading distance should be within 10 cm between the Bkey and the Bluetooth module in the door phone.

> [!WARNING]
> Tip
> 
> The installation position of the Bluetooth module varies by model. Please refer to the article [Devices’ Bluetooth Module Introduction](/v1/docs/devices-bluetooth-module-introduction).

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-19WO5530.png)

1. Scroll to the bottom to configure the Access Setting.

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/image-0QA8U6EQ.png)

1. Click Submit to save the settings.

When users press the Bkey, the door will be opened.