diff --git a/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBChannel.java b/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBChannel.java
index 7f8e781..1eca6e2 100644
--- a/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBChannel.java
+++ b/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBChannel.java
@@ -12,6 +12,7 @@ public class LedgerUSBChannel implements CardChannel {
   private static final int HID_BUFFER_SIZE = 64;
   private static final int LEDGER_DEFAULT_CHANNEL = 1;
   private static final int TAG_APDU = 0x05;
+  private static final int READ_TIMEOUT = 20000;
 
   private HidDevice hidDevice;
 
@@ -44,7 +45,7 @@ public class LedgerUSBChannel implements CardChannel {
     byte[] responseData = null;
 
     while ((responseData = unwrapResponseAPDU(response.toByteArray())) == null) {
-      if (hidDevice.read(chunk, 500) < 0) {
+      if (hidDevice.read(chunk, READ_TIMEOUT) < 0) {
         throw new IOException("Read failed");
       }
 
diff --git a/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBManager.java b/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBManager.java
index ad767b3..42520bc 100644
--- a/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBManager.java
+++ b/desktop/src/main/java/im/status/keycard/desktop/LedgerUSBManager.java
@@ -12,6 +12,8 @@ public class LedgerUSBManager implements HidServicesListener {
 
   private static final int VID = 0x2c97;
   private static final int PID = 0x0001;
+  private static final int SCAN_INTERVAL_MS = 500;
+  private static final int PAUSE_INTERVAL_MS = 5000;
 
   private HidServices hidServices;
   private CardListener listener;
@@ -21,8 +23,8 @@ public class LedgerUSBManager implements HidServicesListener {
 
     HidServicesSpecification hidServicesSpecification = new HidServicesSpecification();
     hidServicesSpecification.setAutoShutdown(true);
-    hidServicesSpecification.setScanInterval(500);
-    hidServicesSpecification.setPauseInterval(5000);
+    hidServicesSpecification.setScanInterval(SCAN_INTERVAL_MS);
+    hidServicesSpecification.setPauseInterval(PAUSE_INTERVAL_MS);
     hidServicesSpecification.setScanMode(ScanMode.SCAN_AT_FIXED_INTERVAL_WITH_PAUSE_AFTER_WRITE);
 
     hidServices = HidManager.getHidServices(hidServicesSpecification);