# Modules.BLE.MutableCharacteristic
A characteristic of a local peripheral’s service.
# Overview
It objects represent the characteristics of a local peripheral’s service. This class adds write access to many of the properties in the Characteristic class, which it inherits from.
# Properties
# permissions
permissions :Number
The permissions of the characteristic value. It is only present if this JavaScript object represents a mutable characteristic.
# subscribedCentrals
subscribedCentrals :Modules.BLE.Central
For notifying characteristics, the set of currently subscribed centrals.