diff --git a/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj b/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
index 1f34981..470002c 100644
--- a/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
+++ b/ElevenLabs-DotNet/ElevenLabs-DotNet.csproj
@@ -14,8 +14,11 @@
     <Company>RageAgainstThePixel</Company>
     <Copyright>2023</Copyright>
     <PackageTags>ElevenLabs, AI, ML, Voice, TTS</PackageTags>
-    <Version>1.3.0</Version>
-    <PackageReleaseNotes>Version 1.3.0
+    <Version>1.3.2</Version>
+    <PackageReleaseNotes>Version 1.3.2
+- Added voice equality operators
+- Added better parameter validation checks in Endpoints
+Version 1.3.0
 - Added ModelsEndpoint
 - Updated TextToSpeech.TextToSpeechAsync with optional Model parameter. Defaults to eleven_monolingual_v1
 Version 1.2.1
diff --git a/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs b/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
index ca6f1c5..d6013c5 100644
--- a/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
+++ b/ElevenLabs-DotNet/TextToSpeech/TextToSpeechEndpoint.cs
@@ -37,6 +37,12 @@ public async Task<string> TextToSpeechAsync(string text, Voice voice, VoiceSetti
             {
                 throw new ArgumentOutOfRangeException(nameof(text), $"{nameof(text)} cannot exceed 5000 characters");
             }
+
+            if (voice == null)
+            {
+                throw new ArgumentNullException(nameof(voice));
+            }
+
             var rootDirectory = (saveDirectory ?? Directory.GetCurrentDirectory()).CreateNewDirectory(nameof(ElevenLabs));
             var downloadDirectory = rootDirectory.CreateNewDirectory("TextToSpeech");
             var fileName = $"{text.GenerateGuid()}.mp3";
diff --git a/ElevenLabs-DotNet/Voices/Voice.cs b/ElevenLabs-DotNet/Voices/Voice.cs
index 2927628..3d9fe3c 100644
--- a/ElevenLabs-DotNet/Voices/Voice.cs
+++ b/ElevenLabs-DotNet/Voices/Voice.cs
@@ -1,5 +1,6 @@
 // Licensed under the MIT License. See LICENSE in the project root for license information.
 
+using System;
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
 
@@ -78,5 +79,55 @@ public Voice(string id)
         public static Voice Sam { get; } = new Voice("yoZ06aMxZJJ28mfd3POQ");
 
         #endregion Premade Voices
+
+        public bool Equals(Voice other)
+        {
+            if (ReferenceEquals(null, other))
+            {
+                return string.IsNullOrWhiteSpace(Id);
+            }
+
+            if (ReferenceEquals(this, other))
+            {
+                return true;
+            }
+
+            return Name == other.Name &&
+                   Id == other.Id &&
+                   Equals(Samples, other.Samples) &&
+                   Category == other.Category &&
+                   Equals(Labels, other.Labels) &&
+                   PreviewUrl == other.PreviewUrl &&
+                   Equals(AvailableForTiers, other.AvailableForTiers) &&
+                   Equals(Settings, other.Settings);
+        }
+
+        public override bool Equals(object voice)
+            => ReferenceEquals(this, voice) || voice is Voice other && Equals(other);
+
+        public override int GetHashCode()
+            => HashCode.Combine(Name, Id, Samples, Category, Labels, PreviewUrl, AvailableForTiers, Settings);
+
+        public static bool operator !=(Voice left, Voice right) => !(left == right);
+
+        public static bool operator ==(Voice left, Voice right)
+        {
+            if (left is null && right is null)
+            {
+                return true;
+            }
+
+            if (left is null)
+            {
+                return string.IsNullOrWhiteSpace(right.Id);
+            }
+
+            if (right is null)
+            {
+                return string.IsNullOrWhiteSpace(left.Id);
+            }
+
+            return left.Equals(right);
+        }
     }
 }
diff --git a/ElevenLabs-DotNet/Voices/VoicesEndpoint.cs b/ElevenLabs-DotNet/Voices/VoicesEndpoint.cs
index 9ac0078..e88db8e 100644
--- a/ElevenLabs-DotNet/Voices/VoicesEndpoint.cs
+++ b/ElevenLabs-DotNet/Voices/VoicesEndpoint.cs
@@ -82,6 +82,11 @@ public async Task<VoiceSettings> GetDefaultVoiceSettingsAsync(CancellationToken
         /// <returns><see cref="VoiceSettings"/>.</returns>
         public async Task<VoiceSettings> GetVoiceSettingsAsync(string voiceId, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
             var response = await Api.Client.GetAsync(GetUrl($"/{voiceId}/settings"), cancellationToken);
             var responseAsString = await response.ReadAsStringAsync();
             return JsonSerializer.Deserialize<VoiceSettings>(responseAsString, Api.JsonSerializationOptions);
@@ -96,6 +101,11 @@ public async Task<VoiceSettings> GetVoiceSettingsAsync(string voiceId, Cancellat
         /// <returns><see cref="Voice"/>.</returns>
         public async Task<Voice> GetVoiceAsync(string voiceId, bool withSettings = true, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
             var response = await Api.Client.GetAsync(GetUrl($"/{voiceId}?with_settings={withSettings}"), cancellationToken);
             var responseAsString = await response.ReadAsStringAsync();
             return JsonSerializer.Deserialize<Voice>(responseAsString, Api.JsonSerializationOptions);
@@ -110,6 +120,11 @@ public async Task<Voice> GetVoiceAsync(string voiceId, bool withSettings = true,
         /// <returns>True, if voice settings was successfully edited.</returns>
         public async Task<bool> EditVoiceSettingsAsync(string voiceId, VoiceSettings voiceSettings, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
             var payload = JsonSerializer.Serialize(voiceSettings).ToJsonStringContent();
             var response = await Api.Client.PostAsync(GetUrl($"/{voiceId}/settings/edit"), payload, cancellationToken);
             await response.ReadAsStringAsync();
@@ -229,6 +244,11 @@ public async Task<bool> EditVoiceAsync(Voice voice, IEnumerable<string> samplePa
         /// <returns>True, if voice was successfully deleted.</returns>
         public async Task<bool> DeleteVoiceAsync(string voiceId, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
             var response = await Api.Client.DeleteAsync(GetUrl($"/{voiceId}"), cancellationToken);
             await response.CheckResponseAsync(cancellationToken);
             return response.IsSuccessStatusCode;
@@ -245,6 +265,16 @@ public async Task<bool> DeleteVoiceAsync(string voiceId, CancellationToken cance
         /// <param name="cancellationToken">Optional, <see cref="CancellationToken"/>.</param>
         public async Task<string> GetVoiceSampleAsync(string voiceId, string sampleId, string saveDirectory = null, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
+            if (string.IsNullOrWhiteSpace(sampleId))
+            {
+                throw new ArgumentNullException(nameof(sampleId));
+            }
+
             var response = await Api.Client.GetAsync(GetUrl($"/{voiceId}/samples/{sampleId}/audio"), cancellationToken);
             await response.CheckResponseAsync(cancellationToken);
 
@@ -291,6 +321,16 @@ public async Task<string> GetVoiceSampleAsync(string voiceId, string sampleId, s
         /// <returns>True, if <see cref="Voice"/> <see cref="Sample"/> was successfully deleted.</returns>
         public async Task<bool> DeleteVoiceSampleAsync(string voiceId, string sampleId, CancellationToken cancellationToken = default)
         {
+            if (string.IsNullOrWhiteSpace(voiceId))
+            {
+                throw new ArgumentNullException(nameof(voiceId));
+            }
+
+            if (string.IsNullOrWhiteSpace(sampleId))
+            {
+                throw new ArgumentNullException(nameof(sampleId));
+            }
+
             var response = await Api.Client.DeleteAsync(GetUrl($"/{voiceId}/samples/{sampleId}"), cancellationToken);
             await response.CheckResponseAsync(cancellationToken);
             return response.IsSuccessStatusCode;