diff --git a/manager-app/src/async_bridge/command.rs b/manager-app/src/async_bridge/command.rs
index cb5673b..fa08c8b 100644
--- a/manager-app/src/async_bridge/command.rs
+++ b/manager-app/src/async_bridge/command.rs
@@ -22,3 +22,11 @@ pub struct SetSoundModePayload {
     pub addr: BluetoothAdrr,
     pub sound_mode: SoundMode,
 }
+
+#[derive(Debug, Deserialize, Clone)]
+#[typeshare]
+#[serde(rename_all = "camelCase")]
+pub enum SetEqualizerPayload {
+    SetCustomEqualizer,
+    SetEqualizerPreset,
+}
\ No newline at end of file
diff --git a/manager-ui/src/components/EqualizerCard/equalizer.tsx b/manager-ui/src/components/EqualizerCard/equalizer.tsx
index 5ac9a92..d45e73b 100644
--- a/manager-ui/src/components/EqualizerCard/equalizer.tsx
+++ b/manager-ui/src/components/EqualizerCard/equalizer.tsx
@@ -1,18 +1,19 @@
-import { ChartData } from 'chart.js';
-import { useCallback, useState } from 'react';
-import { Line } from 'react-chartjs-2';
-import 'chartjs-plugin-dragdata';
 import {
-  Chart as ChartJS,
   CategoryScale,
+  Chart as ChartJS,
+  ChartData,
+  Filler,
+  Legend,
   LinearScale,
-  PointElement,
   LineElement,
+  PointElement,
   Title,
-  Tooltip,
-  Legend,
-  Filler
+  Tooltip
 } from 'chart.js';
+import { useCallback, useState } from 'react';
+import { Line } from 'react-chartjs-2';
+import 'chartjs-plugin-dragdata';
+import { Button } from '@mui/material';
 
 ChartJS.register(
   CategoryScale,
@@ -66,6 +67,12 @@ export const Equalizer = ({ bands, input, onEqualizerChange }: EqualizerProps):
     console.log('Equalizer output:', newDataSet);
   };
 
+  const onResetClick = () => {
+    const newDataSet = Array(bands).fill(0);
+    setDataSet(newDataSet);
+    onEqualizerChange(newDataSet);
+  };
+
   //@ts-expect-error: no type found for this event
   const onHover = useCallback((e) => {
     const point = e?.chart.getElementsAtEventForMode(e, 'nearest', { intersect: true }, false);
@@ -111,6 +118,7 @@ export const Equalizer = ({ bands, input, onEqualizerChange }: EqualizerProps):
   return (
     <>
       <Line data={data} options={options} />
+      <Button onClick={() => onResetClick()}>Reset</Button>
     </>
   );
 };
diff --git a/manager-ui/src/components/EqualizerCard/equalizerCard.tsx b/manager-ui/src/components/EqualizerCard/equalizerCard.tsx
index 0b87a3b..de96b76 100644
--- a/manager-ui/src/components/EqualizerCard/equalizerCard.tsx
+++ b/manager-ui/src/components/EqualizerCard/equalizerCard.tsx
@@ -1,6 +1,6 @@
-import { Paper } from '@mui/material';
+import { Collapse, MenuItem, Paper, Select, SelectChangeEvent, Stack } from '@mui/material';
 import { Equalizer } from './equalizer';
-import { SoundcoreDeviceState } from '@generated-types/soundcore-lib';
+import { EQProfile, SoundcoreDeviceState } from '@generated-types/soundcore-lib';
 import { useCallback } from 'react';
 
 export interface EqualizerCardProps {
@@ -8,11 +8,15 @@ export interface EqualizerCardProps {
 }
 
 export const EqualizerCard = ({ state }: EqualizerCardProps): JSX.Element => {
-  const onEqualizerChange = useCallback((output: number[]) => {
+  const onCustomEqualizerChange = useCallback((output: number[]) => {
     console.log('Equalizer output:', output);
     console.log('Equalizer output mapped:', mapRangeArray(output, -6, 6, 0, 240));
   }, []);
 
+  const onSelectedEqProfileChange = (e: SelectChangeEvent) => {
+    console.log('Selected EQ profile:', e.target.value);
+  };
+
   const mapRange = (
     value: number,
     inMin: number,
@@ -40,21 +44,35 @@ export const EqualizerCard = ({ state }: EqualizerCardProps): JSX.Element => {
     } else {
       valueArr = state.eqConfiguration.value.eq.values;
     }
-    console.log('EQ values:', valueArr);
     return mapRangeArray(valueArr, 0, 240, -6, 6);
   };
 
-  console.log('Mapped EQ values:', getMappedEqValues());
+  const eqProfiles = Object.keys(EQProfile).filter((item) => {
+    return isNaN(Number(item));
+  });
+
+  const isOnCustom = state.eqConfiguration.value.profile === EQProfile.Custom;
 
   return (
     <Paper sx={{ display: 'flex', margin: 3, justifyContent: 'center', alignItems: 'center' }}>
-      {state.featureSet.equalizerFeatures && (
-        <Equalizer
-          bands={state.featureSet.equalizerFeatures.bands}
-          input={[...getMappedEqValues()]}
-          onEqualizerChange={onEqualizerChange}
-        />
-      )}
+      <Stack sx={{ width: '100%' }}>
+        <Select value={state.eqConfiguration.value.profile} onChange={onSelectedEqProfileChange}>
+          {eqProfiles.map((profile) => (
+            <MenuItem key={profile} value={profile}>
+              {profile}
+            </MenuItem>
+          ))}
+        </Select>
+        {state.featureSet.equalizerFeatures && (
+          <Collapse in={isOnCustom} timeout="auto">
+            <Equalizer
+              bands={state.featureSet.equalizerFeatures.bands}
+              input={[...getMappedEqValues()]}
+              onEqualizerChange={onCustomEqualizerChange}
+            />
+          </Collapse>
+        )}
+      </Stack>
     </Paper>
   );
 };
diff --git a/manager-ui/src/types/tauri-backend.d.ts b/manager-ui/src/types/tauri-backend.d.ts
index 7462b55..b67c9c1 100644
--- a/manager-ui/src/types/tauri-backend.d.ts
+++ b/manager-ui/src/types/tauri-backend.d.ts
@@ -24,6 +24,11 @@ export type BridgeCommand =
   | { command: 'disconnectAll'; payload?: undefined }
   | { command: 'setSoundMode'; payload: SetSoundModePayload };
 
+export enum SetEqualizerPayload {
+  SetCustomEqualizer = 'setCustomEqualizer',
+  SetEqualizerPreset = 'setEqualizerPreset'
+}
+
 export type BridgeResponse =
   | { kind: 'scanResult'; payload: DiscoveredDevice[] }
   | { kind: 'connectionEstablished'; payload: TaggedStateResponse }
diff --git a/soundcore-lib/src/devices/a3040/eq_update_command.rs b/soundcore-lib/src/devices/a3040/eq_update_command.rs
index 2fa402f..5312531 100644
--- a/soundcore-lib/src/devices/a3040/eq_update_command.rs
+++ b/soundcore-lib/src/devices/a3040/eq_update_command.rs
@@ -10,11 +10,13 @@ impl Packet for A3040EqUpdateCommand {
     fn command(&self) -> [u8; 7] {
         match self.bass_up.0 {
             true => [0x08, 0xEE, 0x00, 0x00, 0x00, 0x02, 0x84],
-            false => todo!(),
+            false => [0x08, 0xEE, 0x00, 0x00, 0x00, 0x03, 0x87],
         }
     }
 
     fn payload(&self) -> Vec<u8> {
+        // 2 bytes profile - FEFE - Custom
+        //
         todo!()
     }
 }
diff --git a/soundcore-lib/src/main.rs b/soundcore-lib/src/main.rs
new file mode 100644
index 0000000..dba710e
--- /dev/null
+++ b/soundcore-lib/src/main.rs
@@ -0,0 +1,33 @@
+use env_logger::{Builder, Target};
+use log::LevelFilter;
+
+use soundcore_lib::ble::{BLEConnectionFactory, BLEConnectionManager};
+use soundcore_lib::device_manager::create_device_manager;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    Builder::new()
+        .target(Target::Stdout)
+        .filter_level(LevelFilter::Trace)
+        .init();
+    let manager = create_device_manager().await;
+    let scan_res = manager.ble_scan(None).await?;
+    println!("{:?}", scan_res);
+    let device = scan_res
+        .iter()
+        .find(|d| d.descriptor.name.contains("Q45"))
+        .unwrap();
+    let connection = manager.connect(device.clone()).await?;
+
+    let mut state_channel = connection.state_channel().await;
+
+    while let Ok(()) = state_channel.changed().await {
+        println!("{:?}", state_channel.borrow_and_update());
+    }
+    // let registry = BtlePlugDeviceRegistry::new().await?;
+    // let scan_res = registry.scan(None).await?;
+    // println!("{:?}", scan_res);
+    // let q45 = scan_res.iter().find(|d| d.name.contains("Q45")).unwrap();
+    // let _connection = registry.connect(q45.clone(), None).await?;
+    Ok(())
+}
diff --git a/soundcore-lib/src/parsers/packet_header.rs b/soundcore-lib/src/parsers/packet_header.rs
index 8bc53bb..45c977b 100644
--- a/soundcore-lib/src/parsers/packet_header.rs
+++ b/soundcore-lib/src/parsers/packet_header.rs
@@ -34,7 +34,7 @@ fn parse_packet_kind<'a, E: ParseError<'a>>(bytes: &'a [u8]) -> ParseResult<Resp
     context(
         "parse_packet_header",
         map_opt(take(2usize), |bytes: &[u8]| {
-            trace!("Parsing packet kind: {:?}", bytes);
+            trace!("Parsing packet kind: {:X?}", bytes);
             PACKET_KIND_MAP
                 .iter()
                 .find(|(map_bytes, _)| map_bytes == &bytes)
diff --git a/soundcore-lib/tests/a3040.rs b/soundcore-lib/tests/a3040.rs
new file mode 100644
index 0000000..8525c7a
--- /dev/null
+++ b/soundcore-lib/tests/a3040.rs
@@ -0,0 +1,52 @@
+use soundcore_lib::{packets::ResponsePacket, types::SupportedModels};
+
+#[test]
+fn should_parse_state_update() {
+    let packet = ResponsePacket::from_bytes(&test_data::a3040::UNKN);
+    match packet {
+        Ok(ResponsePacket::DeviceState(state)) => {
+            // TODO: Assert state
+            assert_eq!(state.tag, SupportedModels::A3040);
+            println!("{:?}", state.data);
+        }
+        Err(err) => panic!("Failed to parse state update packet, error: {:X?}", err),
+        _ => panic!("Parsed as wrong packet type"),
+    }
+}
+
+#[test]
+fn should_parse_sound_mode_update_packet() {
+    // Normal
+    // {
+    //     let packet = ResponsePacket::from_bytes(&test_data::a3040::SOUND_MODE_UPDATE_NORMAL);
+    //     match packet {
+    //         Ok(ResponsePacket::SoundModeUpdate(state)) => {
+    //             assert_eq!(state.0.current, CurrentSoundMode::Normal);
+    //         }
+    //         Err(_err) => panic!("Failed to parse state update packet"),
+    //         _ => panic!("Parsed as wrong packet type"),
+    //     }
+    // }
+    // // Noise Cancelling
+    // {
+    //     let packet = ResponsePacket::from_bytes(&test_data::a3040::SOUND_MODE_UPDATE_NOISE_CANCELLING);
+    //     match packet {
+    //         Ok(ResponsePacket::SoundModeUpdate(state)) => {
+    //             todo!()
+    //         }
+    //         Err(_err) => panic!("Failed to parse state update packet"),
+    //         _ => panic!("Parsed as wrong packet type"),
+    //     }
+    // }
+    // // Transparency
+    // {
+    //     let packet = ResponsePacket::from_bytes(&test_data::a3040::SOUND_MODE_UPDATE_TRANSPARENCY);
+    //     match packet {
+    //         Ok(ResponsePacket::SoundModeUpdate(state)) => {
+    //             todo!()
+    //         }
+    //         Err(_err) => panic!("Failed to parse state update packet"),
+    //         _ => panic!("Parsed as wrong packet type"),
+    //     }
+    // }
+}
diff --git a/test_data/src/a3040.rs b/test_data/src/a3040.rs
index 467dfca..b5b9974 100644
--- a/test_data/src/a3040.rs
+++ b/test_data/src/a3040.rs
@@ -10,6 +10,18 @@ pub const A3040_STATE_UPDATE_BYTES: [u8; 152] = [
     0x78, 0x78, 0x78, 0x78, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x57,
 ];
 
+pub const UNKN: [u8; 152] = [
+    0x9, 0xFF, 0x0, 0x0, 0x1, 0x1, 0x1, 0x98, 0x0, 0x5, 0xFF, 0x30, 0x36, 0x2E, 0x33, 0x34, 0x33,
+    0x30, 0x34, 0x30, 0x45, 0x41, 0x43, 0x33, 0x35, 0x36, 0x43, 0x43, 0x45, 0x45, 0x45, 0x38, 0x2,
+    0x0, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x0, 0x0, 0x78, 0x78, 0x78, 0x78, 0x78,
+    0x78, 0x78, 0x78, 0x0, 0x0, 0x4, 0x4, 0x7, 0x7, 0x1, 0x51, 0x1, 0x0, 0x0, 0x3, 0xFF, 0x0, 0x0,
+    0xFF, 0x1, 0x31, 0x0, 0x1, 0xFF, 0x0, 0x1, 0x1, 0x0, 0x5A, 0x0, 0x1, 0x1, 0x0, 0x2, 0x0, 0x32,
+    0xFF, 0x0, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x0, 0x0, 0x3C, 0x3C, 0x3C, 0x3C,
+    0x3C, 0x3C, 0x3C, 0x3C, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3C, 0x3C, 0x3C, 0x3C, 0xB4, 0x3C,
+    0xB4, 0x3C, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x78, 0x78, 0x78, 0x78,
+    0x78, 0x78, 0x78, 0x78, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5C,
+];
+
 pub const anc: [u8; 152] = [
     0x9, 0xFF, 0x0, 0x0, 0x1, 0x1, 0x1, 0x98, 0x0, 0x2, 0xFF, 0x30, 0x36, 0x2E, 0x33, 0x34, 0x33,
     0x30, 0x34, 0x30, 0x45, 0x41, 0x43, 0x33, 0x35, 0x36, 0x43, 0x43, 0x45, 0x45, 0x45, 0x38, 0x0,
@@ -59,8 +71,17 @@ pub const max_eq: [u8; 152] = [
     0x7C, 0x7C, 0x7C, 0x7E, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x77,
 ];
 
-pub const SOUND_MODE_UPDATE_NOISE_CANCELLING: [u8; 16] = [0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x0, 0x51, 0x1, 0x1, 0x0, 0x5, 0x78];
-pub const SOUND_MODE_UPDATE_TRANSPARENCY: [u8; 16] = [0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x1, 0x50, 0x1, 0x1, 0x0, 0x5, 0x78];
-pub const SOUND_MODE_UPDATE_NORMAL: [u8; 16] = [0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x2, 0x50, 0x1, 0x1, 0x0, 0x5, 0x79];
-pub const BASS_UP_UPDATE_ENABLE: [u8; 12] = [0x9, 0xFF, 0x0, 0x0, 0x1, 0x2, 0x1, 0xC, 0x0, 0x2, 0x0, 0x1A];
-pub const BASS_UP_UPDATE_DISABLE: [u8; 12] = [0x9, 0xFF, 0x0, 0x0, 0x1, 0x2, 0x1, 0xC, 0x0, 0xFE, 0xFE, 0x14];
\ No newline at end of file
+pub const SOUND_MODE_UPDATE_NOISE_CANCELLING: [u8; 16] = [
+    0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x0, 0x51, 0x1, 0x1, 0x0, 0x5, 0x78,
+];
+pub const SOUND_MODE_UPDATE_TRANSPARENCY: [u8; 16] = [
+    0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x1, 0x50, 0x1, 0x1, 0x0, 0x5, 0x78,
+];
+pub const SOUND_MODE_UPDATE_NORMAL: [u8; 16] = [
+    0x9, 0xFF, 0x0, 0x0, 0x1, 0x6, 0x1, 0x10, 0x0, 0x2, 0x50, 0x1, 0x1, 0x0, 0x5, 0x79,
+];
+pub const BASS_UP_UPDATE_ENABLE: [u8; 12] =
+    [0x9, 0xFF, 0x0, 0x0, 0x1, 0x2, 0x1, 0xC, 0x0, 0x2, 0x0, 0x1A];
+pub const BASS_UP_UPDATE_DISABLE: [u8; 12] = [
+    0x9, 0xFF, 0x0, 0x0, 0x1, 0x2, 0x1, 0xC, 0x0, 0xFE, 0xFE, 0x14,
+];
diff --git a/test_data/src/lib.rs b/test_data/src/lib.rs
index 07c375f..b5838d8 100644
--- a/test_data/src/lib.rs
+++ b/test_data/src/lib.rs
@@ -1,2 +1,2 @@
+pub mod a3040;
 pub mod a3951;
-pub mod a3040;
\ No newline at end of file