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Welcome to the user manual for your Koss BT221i Wireless Bluetooth Ear Clip Headphones. These headphones are designed for comfort and convenience, featuring a secure ear-clip design, in-line microphone, and remote controls. This manual will guide you through the setup, operation, and maintenance of your new headphones.
Kutuda Neler Var?
- Koss BT221i Wireless Bluetooth Ear Clip Headphones
- Kullanıcı Kılavuzu
- Şarj Kablosu (Micro USB)
- Kablo Yönetim Klipsi
Ürün Bittiview

Figure 1: Koss BT221i Wireless Bluetooth Ear Clip Headphones. This image shows the overall design of the headphones, highlighting the ear clips and the connecting cable.

Figure 2: In-Line Microphone and Remote Control. This close-up shows the control unit on the headphone cable, featuring buttons for volume, play/pause, and call management.
The Koss BT221i headphones feature a lightweight, sweat-resistant design with pivoting ear clips for a secure and comfortable fit. The in-line remote provides easy access to music playback controls, volume adjustments, and call management functions, including a built-in microphone for hands-free communication.
Kurmak
Kulaklıkları Şarj Etme
Before first use, fully charge your headphones. Connect the supplied Micro USB charging cable to the charging port on the in-line remote and plug the other end into a USB power source. A full charge typically takes approximately 1.5 hours. The LED indicator will change to show charging status (e.g., red for charging, blue for fully charged).

Figure 3: Headphones connected to a charging cable, illustrating the charging process.
Bluetooth Eşleştirme
- Kulaklıkların kapalı olduğundan emin olun.
- Press and hold the multi-function button (usually the center button on the remote) for approximately 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- Bluetooth özellikli cihazınızda (akıllı telefon, tablet vb.) Bluetooth ayarlarına gidin ve Bluetooth'u açın.
- Arama available devices and select "Koss BT221i" from the list.
- Once paired, the LED indicator on the headphones will flash blue periodically, and you will hear an audible confirmation.
Kulaklıklar açıldığında otomatik olarak en son eşleştirilen cihaza yeniden bağlanmaya çalışacaktır.
Kullanım Talimatları
Kulaklık Takmak
The BT221i features pivoting ear clips for a secure and comfortable fit. Gently place the ear clips over your ears, ensuring the ear pads rest comfortably on your outer ear. Adjust the pivoting mechanism to achieve the best fit and sound experience. The lightweight design ensures comfort during extended use and physical activity.

Figure 4: A woman wearing the Koss BT221i headphones, demonstrating the on-ear fit with ear clips.

Şekil 5: Ayrıntılı view of the pivoting ear clip, designed for a secure and adjustable fit.
Basic Controls (In-Line Remote)
| Düğme/İşlem | İşlev |
|---|---|
| Çok Fonksiyonlu Düğme (Orta) |
|
| Sesi Aç (+) |
|
| Sesi kıs (-) |
|
Çağrı Yapma ve Alma
When connected to your smartphone, you can use the in-line remote to manage calls:
- İle gelen bir aramayı cevaplamak, short press the multi-function button.
- İle end an active call, short press the multi-function button.
- İle gelen bir çağrıyı reddetmek, press and hold the multi-function button for 2 seconds.
- The built-in microphone ensures clear voice transmission during calls.
Bakım
- Temizlik: Kulaklığınızı yumuşak ve kuru bir bezle silin. Sert kimyasallar veya aşındırıcı malzemeler kullanmayın.
- Ter Direnci: The headphones are sweat-resistant, making them suitable for workouts. However, avoid submerging them in water.
- Depolamak: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures. Use the included cable management clip to prevent tangling.

Figure 6: The cable management clip helps keep the headphone cable tidy and prevents tangling during storage or use.
Sorun giderme
| Sorun | Çözüm |
|---|---|
| Kulaklık açılmıyor. | Kulaklığın tamamen şarj olduğundan emin olun. Bir güç kaynağına bağlayın ve şarj göstergesini kontrol edin. |
| Cihazla eşleştirilemiyor. |
|
| Ses yok veya ses seviyesi düşük. |
|
| Uncomfortable fit or ear pads falling off. |
|
Özellikler
| Özellik | Detay |
|---|---|
| Model Adı | BT221i Bluetooth Wireless Headphones |
| Bluetooth Sürümü | 4.2 |
| Pil Ömrü | 6+ Saat |
| Şarj Süresi | Approx. 1.5 hours (from customer review) |
| Kontrol Türü | Ses Seviyesi Kontrolü, Uzaktan Kumanda |
| Mikrofon | Hat içi mikrofon |
| Suya Dayanıklılık | Terlemeye dayanıklı |
| Kulak Yerleşimi | On Ear (Ear Clip) |
| Ürün Ağırlığı | 1.95 ons (0.06 Kilogram) |
| Ürün Boyutları | 0.98 x 0.98 x 0.98 inç |
Garanti ve Destek
Your Koss BT221i Wireless Bluetooth Ear Clip Headphones come with a Bir Yıllık Sınırlı Garanti. For warranty claims or technical support, please visit the official Koss webSiteyi ziyaret edin veya müşteri hizmetleri departmanıyla iletişime geçin. Garanti geçerliliği için satın alma belgenizi saklayın.
Resmi Ürün Videosu
Video 1: An official product video from Koss Stereophones showcasing the BT221i Wireless Bluetooth Ear Clips, highlighting features like the in-line mic, remote, and 6+ hour battery life.





