diff --git a/jsk_robot_common/jsk_robot_startup/apps/robot_apps.installed b/jsk_robot_common/jsk_robot_startup/apps/robot_apps.installed
index e142d9282c..df66def7b2 100644
--- a/jsk_robot_common/jsk_robot_startup/apps/robot_apps.installed
+++ b/jsk_robot_common/jsk_robot_startup/apps/robot_apps.installed
@@ -1,5 +1,11 @@
 apps:
   - app: jsk_robot_startup/personal_use
-    display: Personal use 
+    display: Personal use
   - app: jsk_robot_startup/check_use_sim_time
     display: Check /use_sim_time param
+  - app: jsk_robot_startup/volume_lower
+    display: Volume lower
+  - app: jsk_robot_startup/volume_reset
+    display: Volume reset
+  - app: jsk_robot_startup/volume_zero
+    display: Volume zero
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.app b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.app
new file mode 100644
index 0000000000..e9648c034f
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.app
@@ -0,0 +1,6 @@
+display: Volume Lower
+description: robot speaks lower volume
+platform: all
+run: jsk_robot_startup/auto_speak_volume_lower.l
+interface: jsk_robot_startup/volume_lower.interface
+icon: jsk_robot_startup/volume_lower.png
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.interface b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.interface
new file mode 100644
index 0000000000..5cb4ae9816
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.interface
@@ -0,0 +1,2 @@
+published_topics: {}
+subscribed_topics: {}
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.png b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.png
new file mode 100644
index 0000000000..d79825e859
Binary files /dev/null and b/jsk_robot_common/jsk_robot_startup/apps/volume_lower/volume_lower.png differ
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.app b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.app
new file mode 100644
index 0000000000..9b71b6cfb6
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.app
@@ -0,0 +1,6 @@
+display: Volume Reset
+description: robot speaks reset volume
+platform: all
+run: jsk_robot_startup/auto_speak_volume_reset.l
+interface: jsk_robot_startup/volume_reset.interface
+icon: jsk_robot_startup/volume_reset.png
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.interface b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.interface
new file mode 100644
index 0000000000..5cb4ae9816
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.interface
@@ -0,0 +1,2 @@
+published_topics: {}
+subscribed_topics: {}
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.png b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.png
new file mode 100644
index 0000000000..d9dbfbc14f
Binary files /dev/null and b/jsk_robot_common/jsk_robot_startup/apps/volume_reset/volume_reset.png differ
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.app b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.app
new file mode 100644
index 0000000000..99cc7aecb2
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.app
@@ -0,0 +1,6 @@
+display: Volume Zero
+description: robot speaks zero volume
+platform: all
+run: jsk_robot_startup/auto_speak_volume_zero.l
+interface: jsk_robot_startup/volume_zero.interface
+icon: jsk_robot_startup/volume_zero.png
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.interface b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.interface
new file mode 100644
index 0000000000..5cb4ae9816
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.interface
@@ -0,0 +1,2 @@
+published_topics: {}
+subscribed_topics: {}
\ No newline at end of file
diff --git a/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.png b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.png
new file mode 100644
index 0000000000..cb736a528e
Binary files /dev/null and b/jsk_robot_common/jsk_robot_startup/apps/volume_zero/volume_zero.png differ
diff --git a/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_lower.l b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_lower.l
new file mode 100755
index 0000000000..e3efe68518
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_lower.l
@@ -0,0 +1,9 @@
+#!/usr/bin/env roseus
+
+(ros::roseus "speak_volume_lower")
+(ros::set-dynamic-reconfigure-param "/audible_warning" "volume" :double 0.2)
+(ros::set-dynamic-reconfigure-param "/tweet_client_tablet" "volume" :double 0.2)
+(ros::set-dynamic-reconfigure-param "/tweet_client_uptime" "volume" :double 0.2)
+(ros::set-dynamic-reconfigure-param "/tweet_client_warning" "volume" :double 0.2)
+(ros::set-dynamic-reconfigure-param "/tweet_client_worktime" "volume" :double 0.2)
+(exit)
diff --git a/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_reset.l b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_reset.l
new file mode 100755
index 0000000000..89685bfb3b
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_reset.l
@@ -0,0 +1,9 @@
+#!/usr/bin/env roseus
+
+(ros::roseus "speak_volume_reset")
+(ros::set-dynamic-reconfigure-param "/audible_warning" "volume" :double 1.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_tablet" "volume" :double 1.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_uptime" "volume" :double 1.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_warning" "volume" :double 1.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_worktime" "volume" :double 1.0)
+(exit)
diff --git a/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_zero.l b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_zero.l
new file mode 100755
index 0000000000..6f89b26903
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/lifelog/auto_speak_volume_zero.l
@@ -0,0 +1,9 @@
+#!/usr/bin/env roseus
+
+(ros::roseus "speak_volume_zero")
+(ros::set-dynamic-reconfigure-param "/audible_warning" "volume" :double 0.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_tablet" "volume" :double 0.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_uptime" "volume" :double 0.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_warning" "volume" :double 0.0)
+(ros::set-dynamic-reconfigure-param "/tweet_client_worktime" "volume" :double 0.0)
+(exit)