---
title: HMCharacteristicValueVolumeControlType.relative
framework: homekit
role: symbol
role_heading: Case
path: homekit/hmcharacteristicvaluevolumecontroltype/relative
---

# HMCharacteristicValueVolumeControlType.relative

The volume adjusts incrementally, without taking the current level into consideration.

## Declaration

```swift
case relative
```

## See Also

### Volume types

- [HMCharacteristicValueVolumeControlType.absolute](homekit/hmcharacteristicvaluevolumecontroltype/absolute.md)
- [HMCharacteristicValueVolumeControlType.none](homekit/hmcharacteristicvaluevolumecontroltype/none.md)
- [HMCharacteristicValueVolumeControlType.relativeWithCurrent](homekit/hmcharacteristicvaluevolumecontroltype/relativewithcurrent.md)