---
title: supportedPlaybackRates
framework: mediaplayer
role: symbol
role_heading: Instance Property
path: mediaplayer/mpchangeplaybackratecommand/supportedplaybackrates
---

# supportedPlaybackRates

The supported playback rates for a media item.

## Declaration

```swift
var supportedPlaybackRates: [NSNumber] { get set }
```

## Discussion

Discussion Contains an array of NSNumber objects. Each object is of type float and designates a supported playback rate. For example, a value of 2.0 would indicate the media item plays at double speed. Negative values are not supported.