diff --git a/client/client.go b/client/client.go
index 841b827..2cbac4b 100644
--- a/client/client.go
+++ b/client/client.go
@@ -1,6 +1,8 @@
 package client
 
-import "errors"
+import (
+	"errors"
+)
 
 const apiEndpoint = "https://api.elevenlabs.io"
 
diff --git a/client/tts.go b/client/tts.go
index 4bbb041..1c8739c 100644
--- a/client/tts.go
+++ b/client/tts.go
@@ -14,6 +14,7 @@ import (
 )
 
 func (c Client) TTSWriter(ctx context.Context, w io.Writer, text, voiceID string, options types.SynthesisOptions) error {
+	options.Clamp()
 	url := fmt.Sprintf(c.endpoint+"/v1/text-to-speech/%s", voiceID)
 	opts := types.TTS{
 		Text:          text,
@@ -55,7 +56,8 @@ func (c Client) TTSWriter(ctx context.Context, w io.Writer, text, voiceID string
 	}
 }
 
-func (c Client) TTS(ctx context.Context, w io.Writer, text, voiceID string, options types.SynthesisOptions) ([]byte, error) {
+func (c Client) TTS(ctx context.Context, text, voiceID string, options types.SynthesisOptions) ([]byte, error) {
+	options.Clamp()
 	url := fmt.Sprintf(c.endpoint+"/v1/text-to-speech/%s", voiceID)
 	client := &http.Client{}
 	opts := types.TTS{
@@ -101,6 +103,7 @@ func (c Client) TTS(ctx context.Context, w io.Writer, text, voiceID string, opti
 }
 
 func (c Client) TTSStream(ctx context.Context, w io.Writer, text, voiceID string, options types.SynthesisOptions) error {
+	options.Clamp()
 	url := fmt.Sprintf(c.endpoint+"/v1/text-to-speech/%s/stream", voiceID)
 	opts := types.TTS{
 		Text:          text,
diff --git a/client/types/types.go b/client/types/types.go
index 2ed8e89..802477e 100644
--- a/client/types/types.go
+++ b/client/types/types.go
@@ -23,6 +23,15 @@ type TTS struct {
 	VoiceSettings SynthesisOptions `json:"voice_settings,omitempty"` // Voice settings are applied only on the given TTS request.
 }
 
+func (so *SynthesisOptions) Clamp() {
+	if so.Stability > 1 || so.Stability < 0 {
+		so.Stability = 0.75
+	}
+	if so.SimilarityBoost > 1 || so.SimilarityBoost < 0 {
+		so.SimilarityBoost = 0.75
+	}
+}
+
 type SynthesisOptions struct {
 	Stability       float64 `json:"stability"`
 	SimilarityBoost float64 `json:"similarity_boost"`
diff --git a/cmd/say/.gitignore b/cmd/say/.gitignore
new file mode 100644
index 0000000..72c77cd
--- /dev/null
+++ b/cmd/say/.gitignore
@@ -0,0 +1,2 @@
+*.mp3
+main
diff --git a/cmd/say/main.go b/cmd/say/main.go
index da29a2c..1c2bd7c 100644
--- a/cmd/say/main.go
+++ b/cmd/say/main.go
@@ -1,4 +1,27 @@
 package main
 
+import (
+	"context"
+	"os"
+
+	"github.com/taigrr/elevenlabs/client"
+	"github.com/taigrr/elevenlabs/client/types"
+)
+
 func main() {
+	ctx := context.Background()
+	client := client.New(os.Getenv("XI_API_KEY"))
+	ids, err := client.GetVoiceIDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	saveFile, err := os.Create("sample.mp3")
+	if err != nil {
+		panic(err)
+	}
+	defer saveFile.Close()
+	err = client.TTSWriter(ctx, saveFile, "hello, golang", ids[0], types.SynthesisOptions{Stability: 0.75, SimilarityBoost: 0.75})
+	if err != nil {
+		panic(err)
+	}
 }