diff --git a/examples/r2t2/README.md b/examples/r2t2/README.md
index bed60d7..fc93917 100644
--- a/examples/r2t2/README.md
+++ b/examples/r2t2/README.md
@@ -4,7 +4,7 @@ Transmit data with the PC speaker
- Vid. r2t2 demonstration + Vid. r2t2 demonstration
This is a command-line program that encodes short messages/data into audio and plays it via the motherboard's PC speaker. To use this tool, you need to attach a [piezo speaker/buzzer](https://en.wikipedia.org/wiki/Piezoelectric_speaker) to your motherboard. Some computers have such speaker already attached.