             /// The carrier mobile country code
             ///
             /// - returns: The carrier mobile country code or nil
-            public static func mobileCountryCode () -> String? {
+            public static var mobileCountryCode: String? {
                 
                 let netInfo = CTTelephonyNetworkInfo()
                 if let carrier = netInfo.subscriberCellularProvider {

            /// The current battery state of the device
            ///
            /// - returns: The current battery state of the device
            public static func state () -> LMBatteryState {
                
                switch device.batteryState {
                case .unknown:

            /// The carrier network country code
            ///
            /// - returns: The carrier network country code or nil
            public static var networkCountryCode: String? {
                
                let netInfo = CTTelephonyNetworkInfo()
                if let carrier = netInfo.subscriberCellularProvider {
