diff --git a/500And650.md b/500And650.md
index 9ecdc3b..a178bae 100644
--- a/500And650.md
+++ b/500And650.md
@@ -39,6 +39,7 @@
   * ![vesc tools](./images/vescUI.jpeg)  
 * [80a](https://www.amazon.com/gp/product/B09FHHZ9VM/ref=ppx_yo_dt_b_asin_title_o02_s02?ie=UTF8&psc=1)
   * Should be more waterproof than the VESC
+* [Save some money on a Bluetooth adapter for Kelly controllers](https://endless-sphere.com/forums/viewtopic.php?f=2&t=97113&p=1716759#p1716759)
 
 ## Battery