diff --git a/variants/xiao_ble/platformio.ini b/variants/xiao_ble/platformio.ini
index 8e9a663a9..165536cce 100644
--- a/variants/xiao_ble/platformio.ini
+++ b/variants/xiao_ble/platformio.ini
@@ -3,7 +3,7 @@
 extends = nrf52840_base
 board = xiao_ble_sense
 board_level = extra
-build_flags = ${nrf52840_base.build_flags} -Ivariants/xiao_ble -Dxiao_ble -D EBYTE_E22
+build_flags = ${nrf52840_base.build_flags} -Ivariants/xiao_ble -Dxiao_ble -DEBYTE_E22 -DEBYTE_E22_900M30S
   -L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m4/fpv4-sp-d16-hard"
 build_src_filter = ${nrf52_base.build_src_filter} +<../variants/xiao_ble>
 lib_deps = 
diff --git a/variants/xiao_ble/variant.h b/variants/xiao_ble/variant.h
index 77af08278..1869e4eee 100644
--- a/variants/xiao_ble/variant.h
+++ b/variants/xiao_ble/variant.h
@@ -142,6 +142,11 @@ static const uint8_t SCK = PIN_SPI_SCK;
 // (which is the default for the sx1262interface code)
 #define SX126X_DIO2_AS_RF_SWITCH
 #define SX126X_DIO3_TCXO_VOLTAGE 1.8
+#ifdef EBYTE_E22_900M30S
+// 10dB PA gain and 30dB rated output; based on PA output table from Ebyte Robin <sales06@ebyte.com>
+#define REGULATORY_GAIN 10
+#define SX126X_MAX_POWER 20
+#endif
 #endif
 
 /*