diff --git a/TODO b/TODO
index a62ebac..b589cef 100644
--- a/TODO
+++ b/TODO
@@ -16,7 +16,6 @@
 * Controls: Do not focus on ship while targetting for area effects (dissociate hover and target)
 * Active effects are not enough visible in ship list (maybe better in arena ?)
 * All things displayed in battle should be updated from LogProcess forwarding, not from current game state
-* Drones: add tooltip
 * Drones: add hull points and take area damage
 * Show power usage/recovery in action bar, on action hover
 * More sound effects (but battle sounds should be vibration only, we are in space !)
diff --git a/src/core/Drone.spec.ts b/src/core/Drone.spec.ts
index d853017..5ef6f0a 100644
--- a/src/core/Drone.spec.ts
+++ b/src/core/Drone.spec.ts
@@ -140,5 +140,18 @@ module TS.SpaceTac {
                 new DroneAppliedEvent(drone, [other])
             ]);
         });
+
+        it("builds a textual description", function () {
+            let drone = new Drone(new Ship());
+            drone.duration = 1;
+            expect(drone.getDescription()).toEqual("For 1 turn:\n• do nothing");
+
+            drone.duration = 3;
+            drone.effects = [
+                new DamageEffect(5),
+                new AttributeEffect("skill_human", 1)
+            ]
+            expect(drone.getDescription()).toEqual("For 3 turns:\n• do 5 damage\n• human skill +1");
+        });
     });
 }
diff --git a/src/core/Drone.ts b/src/core/Drone.ts
index 31c9f83..6561222 100644
--- a/src/core/Drone.ts
+++ b/src/core/Drone.ts
@@ -31,6 +31,17 @@ module TS.SpaceTac {
             this.code = code;
         }
 
+        /**
+         * Get a textual description of this drone
+         */
+        getDescription(): string {
+            let effects = this.effects.map(effect => "• " + effect.getDescription()).join("\n");
+            if (effects.length == 0) {
+                effects = "• do nothing";
+            }
+            return `For ${this.duration} turn${this.duration > 1 ? "s" : ""}:\n${effects}`;
+        }
+
         /**
          * Filter the list of ships in radius.
          */
diff --git a/src/core/Equipment.spec.ts b/src/core/Equipment.spec.ts
index 1b4b21a..1a95bcc 100644
--- a/src/core/Equipment.spec.ts
+++ b/src/core/Equipment.spec.ts
@@ -51,14 +51,14 @@ module TS.SpaceTac.Specs {
                 new DamageEffect(50)
             ]);
             equipment.action = action;
-            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n- do 50 damage on target");
+            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n• do 50 damage on target");
 
             action.blast = 20;
-            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n- do 50 damage in 20km radius");
+            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n• do 50 damage in 20km radius");
 
             action.blast = 0;
             action.effects.push(new StickyEffect(new AttributeLimitEffect("shield_capacity", 200), 3));
-            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n- do 50 damage on target\n- limit shield capacity to 200 for 3 turns on target");
+            expect(equipment.getEffectsDescription()).toEqual("Fire (power usage 1, max range 200km):\n• do 50 damage on target\n• limit shield capacity to 200 for 3 turns on target");
         });
 
         it("gets a minimal level, based on skills requirements", function () {
@@ -106,7 +106,7 @@ module TS.SpaceTac.Specs {
             equipment.wear = 50;
 
             let result = equipment.getFullDescription();
-            expect(result).toEqual("Second hand\n\nRequires:\n- gravity skill 2\n\nWhen equipped:\n- time skill +3");
+            expect(result).toEqual("Second hand\n\nRequires:\n• gravity skill 2\n\nWhen equipped:\n• time skill +3");
         });
     });
 }
diff --git a/src/core/Equipment.ts b/src/core/Equipment.ts
index a011da2..780c48d 100644
--- a/src/core/Equipment.ts
+++ b/src/core/Equipment.ts
@@ -77,7 +77,7 @@ module TS.SpaceTac {
             let requirements: string[] = [];
             iteritems(this.requirements, (skill: keyof ShipAttributes, value) => {
                 if (value > 0) {
-                    requirements.push(`- ${SHIP_ATTRIBUTES[skill].name} ${value}`);
+                    requirements.push(`• ${SHIP_ATTRIBUTES[skill].name} ${value}`);
                 }
             });
 
@@ -149,7 +149,7 @@ module TS.SpaceTac {
             let parts: string[] = [];
 
             if (this.effects.length > 0) {
-                parts.push(["When equipped:"].concat(this.effects.map(effect => "- " + effect.getDescription())).join("\n"));
+                parts.push(["When equipped:"].concat(this.effects.map(effect => "• " + effect.getDescription())).join("\n"));
             }
 
             let action_desc = this.action.getEffectsDescription();
diff --git a/src/core/actions/DeployDroneAction.ts b/src/core/actions/DeployDroneAction.ts
index 70b5212..b275cc0 100644
--- a/src/core/actions/DeployDroneAction.ts
+++ b/src/core/actions/DeployDroneAction.ts
@@ -72,7 +72,7 @@ module TS.SpaceTac {
                 if (effect instanceof StickyEffect) {
                     suffix = `for ${effect.duration} turn${effect.duration > 1 ? "s" : ""} ${suffix}`;
                 }
-                return "- " + effect.getDescription() + " " + suffix;
+                return "• " + effect.getDescription() + " " + suffix;
             });
             return `${desc}:\n${effects.join("\n")}`;
         }
diff --git a/src/core/actions/FireWeaponAction.ts b/src/core/actions/FireWeaponAction.ts
index 23b6b1a..dca79ff 100644
--- a/src/core/actions/FireWeaponAction.ts
+++ b/src/core/actions/FireWeaponAction.ts
@@ -103,7 +103,7 @@ module TS.SpaceTac {
                 if (effect instanceof StickyEffect) {
                     suffix = `for ${effect.duration} turn${effect.duration > 1 ? "s" : ""} ${suffix}`;
                 }
-                return "- " + effect.getDescription() + " " + suffix;
+                return "• " + effect.getDescription() + " " + suffix;
             });
             return `${desc}:\n${effects.join("\n")}`;
         }
diff --git a/src/ui/battle/ActionTooltip.spec.ts b/src/ui/battle/ActionTooltip.spec.ts
index 41d565a..ae34030 100644
--- a/src/ui/battle/ActionTooltip.spec.ts
+++ b/src/ui/battle/ActionTooltip.spec.ts
@@ -30,7 +30,7 @@ module TS.SpaceTac.UI.Specs {
             expect(tooltip.main_title.text).toEqual("Weapon");
             expect(tooltip.sub_title.text).toEqual("Fire");
             expect(tooltip.shortcut.text).toEqual("[ 2 ]");
-            expect(tooltip.description.text).toEqual("Fire (power usage 2, max range 50km):\n- do 12 damage on target");
+            expect(tooltip.description.text).toEqual("Fire (power usage 2, max range 50km):\n• do 12 damage on target");
 
             tooltip.setAction(a3);
             expect(tooltip.main_title.text).toEqual("End turn");
diff --git a/src/ui/battle/ArenaDrone.ts b/src/ui/battle/ArenaDrone.ts
index 486053a..f54bc0e 100644
--- a/src/ui/battle/ArenaDrone.ts
+++ b/src/ui/battle/ArenaDrone.ts
@@ -3,11 +3,14 @@ module TS.SpaceTac.UI {
      * Drone sprite in the arena
      */
     export class ArenaDrone extends Phaser.Group {
+        // Link to view
+        view: BattleView;
+
         // Link to displayed drone
         drone: Drone;
 
         // Sprite
-        sprite: Phaser.Image;
+        sprite: Phaser.Button;
 
         // Radius
         radius: Phaser.Graphics;
@@ -18,6 +21,7 @@ module TS.SpaceTac.UI {
         constructor(battleview: BattleView, drone: Drone) {
             super(battleview.game);
 
+            this.view = battleview;
             this.drone = drone;
 
             this.radius = new Phaser.Graphics(this.game, 0, 0);
@@ -35,10 +39,11 @@ module TS.SpaceTac.UI {
             this.activation.visible = false;
             this.addChild(this.activation);
 
-            this.sprite = new Phaser.Image(this.game, 0, 0, `battle-actions-deploy-${drone.code}`);
+            this.sprite = new Phaser.Button(this.game, 0, 0, `battle-actions-deploy-${drone.code}`);
             this.sprite.anchor.set(0.5, 0.5);
             this.sprite.scale.set(0.1, 0.1);
             this.addChild(this.sprite);
+            this.view.tooltip.bindDynamicText(this.sprite, () => this.drone.getDescription());
         }
 
         /**