diff --git a/box3_voice/main/Kconfig.projbuild b/box3_voice/main/Kconfig.projbuild
index 2963391..4bd33f3 100644
--- a/box3_voice/main/Kconfig.projbuild
+++ b/box3_voice/main/Kconfig.projbuild
@@ -12,6 +12,16 @@ menu "Zacus BOX-3 Voice Configuration"
         help
             WiFi password. Leave empty for open networks.
 
+    config ZACUS_WIFI_CHANNEL
+        int "WiFi channel hint (0 = auto)"
+        default 0
+        range 0 13
+        help
+            Bias the STA scan to start on this channel (1-13). Set this to the
+            master's WiFi channel so ESP-NOW peers land co-channel — required
+            for the scenario relay on multi-AP / mesh networks where the same
+            SSID is broadcast on several channels. 0 = auto (scan all).
+
     config ZACUS_VOICE_BRIDGE_URL
         string "Voice Bridge WebSocket URL"
         default "ws://192.168.0.119:8200/voice/ws"
diff --git a/box3_voice/main/main.c b/box3_voice/main/main.c
index af63310..c66d713 100644
--- a/box3_voice/main/main.c
+++ b/box3_voice/main/main.c
@@ -89,6 +89,7 @@ static esp_err_t wifi_init_sta(void)
             .ssid     = CONFIG_ZACUS_WIFI_SSID,
             .password = CONFIG_ZACUS_WIFI_PASSWORD,
             .threshold.authmode = WIFI_AUTH_WPA2_PSK,
+            .channel  = CONFIG_ZACUS_WIFI_CHANNEL,  /* co-channel master for ESP-NOW relay (0 = auto) */
         },
     };
 
diff --git a/box3_voice/main/scenario_server.c b/box3_voice/main/scenario_server.c
index 3c5a3b3..f476f81 100644
--- a/box3_voice/main/scenario_server.c
+++ b/box3_voice/main/scenario_server.c
@@ -25,7 +25,7 @@
 #define TAG "scenario_srv"
 
 #define MAX_SCENARIO_BYTES (64 * 1024)
-#define SPIFFS_LABEL       "storage"
+#define SPIFFS_LABEL       "spiffs"
 #define SPIFFS_BASE        "/spiffs"
 #define SCENARIO_PATH      SPIFFS_BASE "/scenario.json"
 #define SCENARIO_BAK       SPIFFS_BASE "/scenario.bak"