1. Entwodiksyon
This manual provides essential information for the proper use and maintenance of your Koss CS340BT QZ Wireless Bluetooth On-Ear Communication Headset. Please read these instructions carefully before using the headset to ensure optimal performance and longevity.

Image: Koss CS340BT QZ Wireless Bluetooth On-Ear Communication Headset, front view.
2. Pake kontni
Verifye ke tout atik yo prezan nan anbalaj pwodwi ou a:
- Koss CS340BT QZ Wireless Bluetooth On-Ear Communication Headset
- USB-C Chaje Kab
- Kousen zòrèy (pre-enstale oswa seri rezèv)
- Gid demaraj rapid (pa enkli nan manyèl dijital sa a)
3. Headset Overview ak Kontwòl
Familiarize yourself with the various parts and controls of your headset.
3.1. Headset Dyagram

Image: Diagram illustrating the location of controls on the Koss CS340BT QZ headset.
3.2. Fonksyon kontwòl
- Bouton ANC: Aktive oswa dezaktive Anilasyon Bri Aktif la.
- Bouton pou ogmante volim / pwochen mizik la: Peze yon ti tan pou ogmante volim nan. Peze epi kenbe pou ale nan pwochen mizik la.
- Power / Play / Pause / Pair / Answer / End Call Button:
- Peze epi kenbe pou 3 segonn pou pouvwa sou / koupe.
- Press briefly to play/pause music.
- Peze epi kenbe pou 5 segonn pou antre nan mòd appariement Bluetooth.
- Press briefly to answer an incoming call.
- Press briefly during a call to end it.
- Bouton Diminye Volim / Chante Anvan: Peze yon ti tan pou diminye volim nan. Peze epi kenbe pou ale nan mizik anvan an.
- Mikwofòn Boom: Adjustable boom microphone for clear voice communication.
- USB-C chaje pò: For charging the headset battery.
- 3.5mm Audio Jack: For wired audio connection (cable not included).
4. Enstalasyon
4.1. Chaje Headset la
Anvan premye itilizasyon an, chaje kas ekoutè ou a nèt.
- Connect the supplied USB-C charging cable to the headset's USB-C port.
- Konekte lòt bout kab la nan yon sous kouran USB (pa egzanp, yon pò USB òdinatè, yon adaptè USB nan miray).
- The LED indicator will show charging status (refer to LED indicator section in Quick Start Guide for specific colors).
- Once fully charged, disconnect the cable. A full charge provides up to 30 hours of Bluetooth-only use or 22 hours with ANC enabled.

Imaj: Pò chaje USB-C.
4.2. Powering On / Off
- Pou limen: Peze epi kenbe la Pouvwa / Jwe / Pòz button for approximately 3 seconds until the LED indicator lights up.
- Pou etenn: Peze epi kenbe la Pouvwa / Jwe / Pòz button for approximately 3 seconds until the LED indicator turns off.
4.3. Pè Bluetooth
- Asire ekoutè a koupe.
- Peze epi kenbe la Pouvwa / Jwe / Pòz button for approximately 5 seconds until the LED indicator flashes rapidly (usually blue and red), indicating pairing mode.
- On your device (smartphone, computer, etc.), enable Bluetooth and search for available devices.
- Select "Koss CS340BT QZ" from the list of found devices.
- Yon fwa li konekte, endikatè LED la ap tipikman montre yon limyè ble fiks oswa li ap flache dousman.
5. Operasyon
5.1. Anilasyon Bri Aktif (ANC)
Kas ekoutè a gen sistèm Anilasyon Bri Aktif pou diminye bri anbyen.
- Peze a Bouton ANC once to activate ANC. The LED indicator for ANC will illuminate.
- Peze a Bouton ANC again to deactivate ANC. The ANC LED indicator will turn off.

Image: Active Noise Cancellation in action.
5.2. Fè ak resevwa apèl
The integrated microphone and controls allow for hands-free communication.
- Reponn apèl: Peze a Pouvwa / Jwe / Pòz button once when a call comes in.
- Fini apèl: Peze a Pouvwa / Jwe / Pòz bouton an yon fwa pandan yon apèl.
- Adjust Microphone: Position the flexible microphone boom closer to your mouth for optimal voice clarity. The dual microphone CVC 8.0 technology helps eliminate background noise.
5.3. Mizik lèktur
- Jwe/Poz: Peze a Pouvwa / Jwe / Pòz bouton yon fwa.
- Volim moute: Peze a Volim leve bouton yon fwa.
- Volim desann: Peze a Volim desann bouton yon fwa.
- Pwochen Track: Peze epi kenbe la Volim leve bouton.
- Track Previous: Peze epi kenbe la Volim desann bouton.
5.4. Koneksyon filaire (opsyonèl)
You can use the headset with a 3.5mm audio cable (not included) for a wired connection, bypassing Bluetooth and ANC functionality.

Image: 3.5mm Audio Jack.
6. Antretyen
- Netwayaj: Sèvi ak yon twal mou epi sèk pou netwaye kas ekoutè a. Pa sèvi ak pwodui chimik ki agresif oswa materyèl abrazif.
- Depo: Sere kas ekoutè a nan yon kote ki fre epi sèk, lwen limyè solèy dirèk ak tanperati ekstrèm.
- Kousen zòrèy: The ear cushions are replaceable. Refer to Koss's official website for replacement parts if needed.
NAN. Depanaj
Si ou rankontre pwoblèm, eseye solisyon sa yo:
| Pwoblèm | Solisyon |
|---|---|
| Headset pa limen | Ensure the headset is charged. Connect to a power source using the USB-C cable. |
| Pa ka konekte via Bluetooth | Ensure the headset is in pairing mode (flashing blue/red LED). Turn off and on your device's Bluetooth. Move closer to the device. |
| Pa gen son | Check headset and device volume levels. Ensure the headset is properly paired and selected as the audio output device. |
| Mikwofòn pa mache | Ensure the microphone boom is positioned correctly. Check privacy settings on your device to allow microphone access for the connected application. |
| ANC pa efikas | Ensure ANC is activated (ANC LED on). ANC is most effective against low-frequency, constant noise. |
8. Espesifikasyon
| Karakteristik | Detay |
|---|---|
| Non modèl | CS340BT QZ |
| Koneksyon Teknoloji | San fil (Bluetooth) |
| Teknoloji kominikasyon san fil | Bluetooth 5.0 |
| Gamme Bluetooth | 10 mèt |
| Kontwòl bri | Anile aktif bri |
| Mikwofòn | Dual microphone CVC 8.0 |
| Lavi batri | Up to 30 hours (Bluetooth only), Up to 22 hours (Bluetooth + ANC) |
| Gamme frekans | 20Hz - 20,000Hz |
| Enpedans | 36 Ohm |
| Plasman Zòrèy | Sou Zòrèy |
| Metòd kontwòl | Bouton Manyèl / Fizik |
| 3.5mm Audio Jack | Present (cable not included) |
| Pwa atik | 1.4 liv (apeprè 0.64 kg) |
| Dimansyon pwodwi | 3.25 x 8.68 x 9.06 pous |
| UPC | 021299197196 |

Image: Extended battery life for the Koss CS340BT QZ headset.
9. Garanti ak sipò
9.1. Garanti limite
The Koss CS340BT QZ headset comes with a Yon ane garanti limite from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. For full warranty terms and conditions, please refer to the official Koss websit oswa kontakte sipò kliyan.
9.2. Sipò pou Kliyan
For technical assistance, warranty claims, or further inquiries, please contact Koss customer support:
- Websit: Visit the official Koss websit pou resous sipò, FAQ, ak enfòmasyon pou kontakte yo.
- Imèl/Telefòn: Refer to the contact section on the Koss website for specific email addresses or phone numbers.





