diff --git a/inventory/bf.md b/inventory/bf.md
index 65fa90f..5125306 100644
--- a/inventory/bf.md
+++ b/inventory/bf.md
@@ -16,7 +16,7 @@
 | ip | hostname | mac | pve_ct | server_ip | server_mac | note |
 |---|---|---|---|---|---|---|
 | 10.40.41.4 | MFC | 30:5:5c:78:86:20 |  |  |  |  |
-| 10.40.41.5 | P750W | 4C:EB:BD:E3:25:F2 |  |  |  | Brother PT-P750W Printer |
+| 10.40.41.5 | P750W | 4C:EB:BD:E3:25:F2 |  |  |  | Brother PT-P750W Label-Drucker, **mobil/batteriebetrieben** (Standort variabel); aggressives WLAN-PowerSave → idle nicht ARP/ping-erreichbar (wifi-qcom-Limit), Druck weckt Gerät. Ziel-VLAN 30 (IoT), reserviert 10.40.30.5 |
 | 10.40.41.6 | iHost | D0:27:03:C8:CB:36 |  |  |  |  |
 | 10.40.41.7 | odroid-m1 | 00:1E:06:51:31:C9 |  |  |  |  |
 | 10.40.41.8 | DTUBI-414392337823 | 54:F2:9F:12:51:F0 |  |  |  |  |