diff --git a/main.c b/main.c
index 3ae6f85..d9023f4 100644
--- a/main.c
+++ b/main.c
@@ -1,8 +1,12 @@
 #include "includes/include.h"
 #include "src/driver.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
 int main(int argc, char *argv[]) {
     int sens;
+    char input[100];
 
     printf("K1NG PRO (4k) driver | Cli\n");
     printf("set any sens from 50-26000\n\n");
@@ -10,8 +14,15 @@ int main(int argc, char *argv[]) {
 
     if (argc < 2) {
         printf("set sensitivity to: ");
-        if (scanf("%d", &sens) != 1) {
-            printf("u forgot to input a number?\n");
+        if (fgets(input, sizeof(input), stdin) == NULL || input[0] == '\n') {
+            printf("incorrect input press enter to try again\n");
+            return 1;
+        }
+
+        char *endptr;
+        sens = (int)strtol(input, &endptr, 10);
+        if (*endptr != '\n' && *endptr != '\0') {
+            printf("incorrect input press enter to try again\n");
             return 1;
         }
     } else {
@@ -19,6 +30,11 @@ int main(int argc, char *argv[]) {
         printf("set sensitivity to: %d\n", sens);
     }
 
+    if (sens < 50 || sens > 26000 || sens % 50 != 0) {
+        printf("incorrect input press enter to try again\n");
+        return 1;
+    }
+
     run_driver(sens);
     return 0;
 }