diff --git a/BLE-GATT-Services-and-Characteristics.md b/BLE-GATT-Services-and-Characteristics.md
index 76c24b0..59ec69a 100644
--- a/BLE-GATT-Services-and-Characteristics.md
+++ b/BLE-GATT-Services-and-Characteristics.md
@@ -20,4 +20,11 @@ Each tree is from the device prospective. eg;
 * * * Run Time - (ms) [rwn]
 * * * Max Speed - (PWM) [rwn]
 * * * Ramp Time - (ms) [rwn] (could be something else like a percent, ie; 3 will ramp over the first 3% of total run time)
-* * * Start Delay - (ms) [rwn] (this could be useful for incorporating the air pump)
\ No newline at end of file
+* * * Start Delay - (ms) [rwn] (this could be useful for incorporating the air pump)
+
+* Barhead
+* * Config
+* * * Name - (string) [rwn]
+* * * Backback MAC - (6 bytes) [rwn]
+* * Control
+* * * Paging - (bin) [rwn]
\ No newline at end of file