---
title: BluetoothCharacteristicProperties.writableAuxiliaries
slug: Web/API/BluetoothCharacteristicProperties/writableAuxiliaries
tags:
  - API
  - Bluetooth
  - BluetoothCharacteristicProperties
  - Experimental
  - NeedsExample
  - Property
  - Reference
  - Web Bluetooth API
  - writableAuxiliaries
browser-compat: api.BluetoothCharacteristicProperties.writableAuxiliaries
---
{{securecontext_header}}{{APIRef("Bluetooth API")}}

The **`writableAuxiliaries`** read-only
property of the {{domxref("BluetoothCharacteristicProperties")}} interface returns a
`boolean` that is `true` if reliable writes to the characteristic
descriptor is permitted.

## Syntax

```js
var aBoolean = BluetoothCharacteristicProperties.writableAuxiliaries;
```

### Value

A boolean value.

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}
