diff --git a/CMakeLists.txt b/CMakeLists.txt
index 053fa63..ffe909b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,6 +74,7 @@ set(MYNTEYE_PUBLIC_H
   ${CMAKE_CURRENT_SOURCE_DIR}/include/mynteye/glog_init.h
   ${CMAKE_CURRENT_BINARY_DIR}/include/mynteye/mynteye.h
   ${CMAKE_CURRENT_SOURCE_DIR}/include/mynteye/types.h
+  ${CMAKE_CURRENT_SOURCE_DIR}/include/mynteye/utils.h
   ${CMAKE_CURRENT_SOURCE_DIR}/src/device/context.h
   ${CMAKE_CURRENT_SOURCE_DIR}/src/device/device.h
   ${CMAKE_CURRENT_SOURCE_DIR}/src/internal/files.h
@@ -106,6 +107,7 @@ set(MYNTEYE_SRCS
   src/internal/strings.cc
   src/internal/types.cc
   src/public/types.cc
+  src/public/utils.cc
   src/device/context.cc
   src/device/device.cc
   src/device/device_s.cc
diff --git a/include/mynteye/utils.h b/include/mynteye/utils.h
new file mode 100644
index 0000000..a3c05a4
--- /dev/null
+++ b/include/mynteye/utils.h
@@ -0,0 +1,22 @@
+#ifndef MYNTEYE_UTILS_H_  // NOLINT
+#define MYNTEYE_UTILS_H_
+#pragma once
+
+#include <memory>
+
+#include "mynteye/mynteye.h"
+
+MYNTEYE_BEGIN_NAMESPACE
+
+class Device;
+
+namespace device {
+
+/** Detecting MYNT EYE devices and prompt user to select one */
+std::shared_ptr<Device> select();
+
+}  // namespace device
+
+MYNTEYE_END_NAMESPACE
+
+#endif  // MYNTEYE_UTILS_H_ NOLINT
diff --git a/samples/device/camera.cc b/samples/device/camera.cc
index 434882f..d7e3b95 100644
--- a/samples/device/camera.cc
+++ b/samples/device/camera.cc
@@ -3,8 +3,8 @@
 
 #include "mynteye/glog_init.h"
 
-#include "mynteye/context.h"
 #include "mynteye/device.h"
+#include "mynteye/utils.h"
 
 #include "mynteye/times.h"
 
@@ -13,38 +13,7 @@ MYNTEYE_USE_NAMESPACE
 int main(int argc, char *argv[]) {
   glog_init _(argc, argv);
 
-  LOG(INFO) << "Detecting MYNT EYE devices";
-  Context context;
-  auto &&devices = context.devices();
-
-  size_t n = devices.size();
-  LOG_IF(FATAL, n <= 0) << "No MYNT EYE devices :(";
-
-  LOG(INFO) << "MYNT EYE devices:";
-  for (size_t i = 0; i < n; i++) {
-    auto &&device = devices[i];
-    auto &&name = device->GetInfo(Info::DEVICE_NAME);
-    LOG(INFO) << "  index: " << i << ", name: " << name;
-  }
-
-  std::shared_ptr<Device> device = nullptr;
-  if (n <= 1) {
-    device = devices[0];
-    LOG(INFO) << "Only one MYNT EYE device, select index: 0";
-  } else {
-    while (true) {
-      size_t i;
-      LOG(INFO) << "There are " << n << " MYNT EYE devices, select index: ";
-      std::cin >> i;
-      if (i >= n) {
-        LOG(WARNING) << "Index out of range :(";
-        continue;
-      }
-      device = devices[i];
-      break;
-    }
-  }
-
+  auto &&device = device::select();
   /*
   {  // auto-exposure
     device->SetOptionValue(Option::EXPOSURE_MODE, 0);
diff --git a/src/public/utils.cc b/src/public/utils.cc
new file mode 100644
index 0000000..6e3d862
--- /dev/null
+++ b/src/public/utils.cc
@@ -0,0 +1,50 @@
+#include "mynteye/utils.h"
+
+#include <glog/logging.h>
+
+#include "device/context.h"
+#include "device/device.h"
+
+MYNTEYE_BEGIN_NAMESPACE
+
+namespace device {
+
+std::shared_ptr<Device> select() {
+  LOG(INFO) << "Detecting MYNT EYE devices";
+  Context context;
+  auto &&devices = context.devices();
+
+  size_t n = devices.size();
+  LOG_IF(FATAL, n <= 0) << "No MYNT EYE devices :(";
+
+  LOG(INFO) << "MYNT EYE devices:";
+  for (size_t i = 0; i < n; i++) {
+    auto &&device = devices[i];
+    auto &&name = device->GetInfo(Info::DEVICE_NAME);
+    LOG(INFO) << "  index: " << i << ", name: " << name;
+  }
+
+  std::shared_ptr<Device> device = nullptr;
+  if (n <= 1) {
+    device = devices[0];
+    LOG(INFO) << "Only one MYNT EYE device, select index: 0";
+  } else {
+    while (true) {
+      size_t i;
+      LOG(INFO) << "There are " << n << " MYNT EYE devices, select index: ";
+      std::cin >> i;
+      if (i >= n) {
+        LOG(WARNING) << "Index out of range :(";
+        continue;
+      }
+      device = devices[i];
+      break;
+    }
+  }
+
+  return device;
+}
+
+}  // namespace device
+
+MYNTEYE_END_NAMESPACE
diff --git a/tools/dataset/record.cc b/tools/dataset/record.cc
index 8c191cd..23f85b7 100644
--- a/tools/dataset/record.cc
+++ b/tools/dataset/record.cc
@@ -3,8 +3,8 @@
 
 #include "mynteye/glog_init.h"
 
-#include "mynteye/context.h"
 #include "mynteye/device.h"
+#include "mynteye/utils.h"
 
 #include "mynteye/times.h"
 
@@ -15,38 +15,7 @@ MYNTEYE_USE_NAMESPACE
 int main(int argc, char *argv[]) {
   glog_init _(argc, argv);
 
-  LOG(INFO) << "Detecting MYNT EYE devices";
-  Context context;
-  auto &&devices = context.devices();
-
-  size_t n = devices.size();
-  LOG_IF(FATAL, n <= 0) << "No MYNT EYE devices :(";
-
-  LOG(INFO) << "MYNT EYE devices:";
-  for (size_t i = 0; i < n; i++) {
-    auto &&device = devices[i];
-    auto &&name = device->GetInfo(Info::DEVICE_NAME);
-    LOG(INFO) << "  index: " << i << ", name: " << name;
-  }
-
-  std::shared_ptr<Device> device = nullptr;
-  if (n <= 1) {
-    device = devices[0];
-    LOG(INFO) << "Only one MYNT EYE device, select index: 0";
-  } else {
-    while (true) {
-      size_t i;
-      LOG(INFO) << "There are " << n << " MYNT EYE devices, select index: ";
-      std::cin >> i;
-      if (i >= n) {
-        LOG(WARNING) << "Index out of range :(";
-        continue;
-      }
-      device = devices[i];
-      break;
-    }
-  }
-
+  auto &&device = device::select();
   /*
   {  // auto-exposure
     device->SetOptionValue(Option::EXPOSURE_MODE, 0);