@property (nonatomic, readonly) NSString *identifier;

Device identifier.

@property (nonatomic, readonly) NSDate *lastLoginDate;

Last login date for device.

@property (nonatomic, readonly) NSString *name;

Device name.

@property (nonatomic, readonly) NSString *platform;

A string which describes a device's platform.

@property (nonatomic, readonly) long long traffic;

Total traffic (in bytes).