diff --git a/IRSend-RAW-Encoding.md b/IRSend-RAW-Encoding.md
index c003dae0..da44b34c 100644
--- a/IRSend-RAW-Encoding.md
+++ b/IRSend-RAW-Encoding.md
@@ -1,18 +1,24 @@
-[`IRSend`](Commands#irsend) `raw,<frequency>,<hdr_mrk>,<hdr_spc>,<bit_mrk>,<zer_spc>,<one_spc>,<bit_str>`
+There are two commands syntax formats for sending an IRsend RAW code:
 
-Where
+1. [`IRSend`](Commands#irsend) `<frequency>,<rawdata1>,<rawdata2>,..,<rawdataN>`
 
-`<frequency>`    = carrier frequency (default 0 = 38kHz)<BR>
-`<hdr_mrk>` = header mark (ms)<BR>
-`<hdr_spc>` = header space (ms)<BR>
-`<bit_mrk>` = bit mark (ms)<BR>
-`<zer_spc>` = zero space (ms)<BR>
-`<one_spc>` = one space (ms)<BR>
-`<bit_str>` = bit stream data (stream of ones and zeroes)
+   e.g., `IRsend 0,926,844,958,832,1798,868,902,848,900,870,900,852,908,918,958,794,934,874,928,1738,934,856,1764`
 
-This command makes use of the output of the raw IR decoder from [ToniA/Raw-IR-decoder-for-Arduino](https://github.com/ToniA/Raw-IR-decoder-for-Arduino)
+2. [`IRSend`](Commands#irsend) `raw,<frequency>[,<header_mark>,<header_space>,<bit_mark>],<zero_space>[, [<one_multiple>] | <one_space>],<bit_stream>`
 
-## Examples
+   Where
+   * `<frequency>`    = carrier frequency (default 0 = 38kHz)
+   * `<header_mark>` = header mark duration (ms) (optional for some protocols)
+   * `<header_space>` = header space duration (ms) (optional for some protocols)
+   * `<bit_mark>` = bit mark duration (ms) (optional for some protocols)
+   * `<zero_space>` = zero space duration (ms)
+   * `<one_multiple>` = May be used instead of the `<one_space>` parameter if the one space duration is an integral multiple of the zero space duration. May be omitted if the multiple is 2.
+   * `<one_space>` = one space duration (ms) (used if its duration is not an integral multiple of `<zero_space>`
+   * `<bit_stream>` = bit stream data (stream of ones and zeroes)
+
+   This command syntax version makes use of the output of the raw IR decoder from [ToniA/Raw-IR-decoder-for-Arduino](https://github.com/ToniA/Raw-IR-decoder-for-Arduino)
+
+## Examples for bitstream command syntax
 
 ### _rawirdecode_ output: