diff --git a/README.md b/README.md
index e53dc25..9eee830 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,7 @@ Openwifi code has dual licenses. AGPLv3 is the opensource license. For non-opens
 
 **Features:**
 
-- 802.11a/g
-- 802.11n MCS 0~7 (Only PHY rx for now. Full system support of 802.11n will come soon)
+- 802.11a/g/n [IEEE 802.11n (Wi-Fi 4)](doc/app_notes/ieee80211n.md)
 - 20MHz bandwidth; 70 MHz to 6 GHz frequency range
 - Mode tested: Ad-hoc; Station; AP, Monitor
 - DCF (CSMA/CA) low MAC layer in FPGA (10us SIFS is achieved)