Zavedení
The Sena 20S EVO is an advanced Bluetooth communication system designed for motorcycle riders. It features a fixed shark fin antenna for improved intercom stability and distance, along with premium HD speakers for enhanced audio quality. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your 20S EVO system.

Figure 1: Sena 20S EVO Dual Pack Product Packaging
Bezpečnostní informace
General safety warnings about battery handling, avoiding water and extreme temperatures, and potential interference with other wireless devices. Always prioritize road safety while using the device.
Obsah balení
The Sena 20S EVO package typically includes the following components:
- Headset Unit(s)
- HD reproduktory
- Boom mikrofon
- Kabelový mikrofon
- Helma Clamp Kit
- Adhesive Mount Adapter
- USB Charging & Data Cable
- Podložky pod reproduktory
- Suché zipy pro reproduktory
- Hook and Loop Fasteners for Boom Microphone
- Suché zipy pro drátový mikrofon
- Imbusový klíč

Figure 2: Sena 20S EVO Headset and Included Components
Nastavení a instalace
Proper installation ensures optimal performance and comfort. The 20S EVO can be mounted using either the helmet clamp kit or the adhesive mount adapter.
1. Výběr místa montáže
Select a flat surface on the left side of your helmet where the unit will not obstruct your vision or movement. Ensure the microphone can be positioned correctly in front of your mouth.
2. Installing the Clamp Unit or Adhesive Mount
- Clamp Jednotka: Povolte šrouby na třamp unit and slide it between the helmet shell and the inner padding. Tighten the screws securely.
- Lepicí držák: Clean the chosen helmet surface thoroughly with an alcohol wipe and let it dry. Peel off the backing from the adhesive mount and firmly press it onto the helmet for at least 30 seconds. Allow 24 hours for the adhesive to fully cure before use.
3. Připojení hlavní jednotky
Slide the main 20S EVO unit onto the mounted clamp or adhesive adapter until it clicks securely into place.

Obrázek 3: Strana View of the Sena 20S EVO Unit
4. Instalace reproduktorů a mikrofonu
- Řečníci: Place the HD speakers inside the helmet's ear pockets, ensuring they are centered over your ears for optimal sound. Use the provided hook and loop fasteners to secure them.
- Mikrofon: For full-face helmets, use the wired microphone and route it along the helmet's interior. For open-face or modular helmets, attach the boom microphone to the helmet's chin bar using the hook and loop fastener, positioning it approximately 1-2 cm from your mouth.

Figure 4: Sena 20S EVO with Speakers and Boom Microphone Attached
Návod k obsluze
The Sena 20S EVO features intuitive controls, primarily through its jog dial and various buttons.
1. Zapnutí/vypnutí
- Zapnutí: Stiskněte a podržte tlačítko telefonu a kolečko Jog Dial po dobu 1 sekundy.
- Vypnout: Současně klepněte na tlačítko telefonu a kolečko Jog Dial.
2. Párování Bluetooth
To pair with your mobile phone or other Bluetooth devices:
- With the 20S EVO powered off, press and hold the Phone Button for 5 seconds until you hear "Phone pairing".
- On your mobile phone, enable Bluetooth and search for devices. Select "Sena 20S EVO" from the list.
- If prompted, enter PIN "0000".
3. Interkomová komunikace
The 20S EVO supports group intercom communication for up to 8 riders over a distance of up to 2.0 km (1.2 miles) in open terrain.
- Spuštění interkomu: Tap the Jog Dial once to initiate intercom with the first paired friend.
- Konec interkomu: Tap the Jog Dial once again.
- Skupinový interkom: Follow the instructions in the full user manual for multi-way intercom setup.
4. Přehrávání hudby
- Přehrát/pozastavit: Press the Jog Dial for 1 second.
- Další skladba: Rotate the Jog Dial clockwise.
- Předchozí skladba: Rotate the Jog Dial counter-clockwise.
- Ovládání hlasitosti: Rotate the Jog Dial while pressing it down.

Figure 5: Sena 20S EVO Connectivity Features
5. Telefonní hovory
- Přijmout hovor: Klepněte na tlačítko Telefon.
- Ukončit hovor: Press the Phone Button for 2 seconds.
- Odmítnout hovor: Press the Phone Button for 2 seconds when a call is incoming.
- Hlasové vytáčení: Press the Phone Button for 3 seconds.

Figure 6: Sena 20S EVO in Use on a Motorcycle Helmet
Údržba
Regular maintenance helps prolong the life of your Sena 20S EVO.
- Čištění: Jednotku otřete měkkým, damp tkanina. Nepoužívejte agresivní chemikálie nebo rozpouštědla.
- Nabíjení: Charge the unit fully before long periods of storage. The charging time is approximately 2.5 hours.
- Skladování: Pokud zařízení nepoužíváte, skladujte jej na chladném a suchém místě.
- Aktualizace firmwaru: Periodically check the Sena webweb s aktualizacemi firmwaru pro zajištění optimálního výkonu a přístupu k novým funkcím.
Odstraňování problémů
If you encounter issues with your Sena 20S EVO, try the following solutions:
| Problém | Možná příčina / řešení |
|---|---|
| Žádná síla | Battery drained. Charge the unit. Ensure charging cable is properly connected. |
| Nelze spárovat Bluetooth | Ensure the 20S EVO is in pairing mode. Check if other devices are already connected. Try resetting the 20S EVO to factory settings. |
| Intercom Disconnects / Poor Stability | Out of range. Obstructions between units. Ensure fixed shark fin antenna is not obstructed. Firmware update may be needed. |
| Audio Quality Issues (Low Volume, Distortion) | Speakers not positioned correctly over ears. Volume too low on device or 20S EVO. Check microphone placement. |
| Voice Commands Not Working | Microphone not positioned correctly. Excessive wind noise. Speak clearly and directly into the microphone. |
| Unit Rattles / Loose Connection to Clamp | Ensure the main unit is fully clicked into the clamp. Re-check clamp screws for tightness. |
Obnovení továrního nastavení
If problems persist, a factory reset may resolve them. Refer to the full user manual for detailed instructions on performing a factory reset.
Specifikace
| Funkce | Detail |
|---|---|
| Název modelu | 20S EVO |
| Technologie připojení | Bluetooth |
| Technologie bezdrátové komunikace | Bluetooth |
| Zahrnuté komponenty | Headset, Cable |
| Materiál | Plast |
| Specifické použití pro produkt | Motorcycle Bluetooth communication |
| Doba nabíjení | 2.5 hodina |
| Doporučená použití pro produkt | Motocykl |
| Typ ovládání | Ovládání médií |
| Hmotnost položky | 61 gramů (2.15 unce) |
| Úroveň odolnosti proti vodě | Vodě odolný |
| Kontrolní metoda | Touch, Jog Dial |
| Rozměry produktu | 1.9 x 3.7 x 1 palce |
| Typ baterie | 1 lithium-polymerová baterie (součástí balení) |
| Frekvenční odezva | 10000 Hz |
| Impedance | 2200 Ohmy |
Podpora a další informace
For more detailed instructions, advanced features, and the latest firmware updates, please refer to the official Sena website or download the complete user guide:
- Oficiální uživatelská příručka (PDF): Stáhnout zde
- Podpora Sena Webmísto: Návštěva sena.com/support for FAQs, video tutorials, and contact information.





