diff --git a/firmware/fullhan_fls.ksy b/firmware/fullhan_fls.ksy
new file mode 100644
index 000000000..e16ca608b
--- /dev/null
+++ b/firmware/fullhan_fls.ksy
@@ -0,0 +1,54 @@
+meta:
+  id: fullhan_fls
+  title: Fullhan FLS
+  file-extension: fls
+  license: CC0-1.0
+  endian: le
+  encoding: UTF-8
+doc: |
+  Test files:
+  - https://www.nvripc.com/new-chinese-ip-camera-firmwares-update/
+  - https://www.herospeed.net/hs/ipc_test/fuhan/
+seq:
+  - id: header
+    type: header
+  - id: entries
+    type: entry
+    repeat: expr
+    repeat-expr: header.num_entries
+  - id: data
+    size: header.len_file - ofs_data
+    type: dummy
+instances:
+  ofs_data:
+    value: header._sizeof + header.num_entries * sizeof<entry>
+types:
+  dummy: {}
+  header:
+    seq:
+      - id: model
+        size: 8
+        type: strz
+      - id: submodel
+        size: 8
+        type: strz
+      - id: len_file
+        type: u4
+      - id: num_entries
+        type: u4
+  entry:
+    seq:
+      - id: name
+        size: 128
+        type: strz
+      - id: len_data
+        type: u4
+      - id: ofs_data
+        type: u4
+      - id: unknown
+        size: 120
+    instances:
+      data:
+        io: _root.data._io
+        pos: ofs_data - _root.ofs_data
+        size: len_data