1. Introduction
Thank you for choosing the TechniSat STERNRADIO IR 2. This compact internet radio offers access to thousands of radio stations worldwide via WLAN, providing a versatile and enjoyable listening experience. It features a color display, alarm functions, and flexible connectivity options, including a replaceable battery for portable use. This manual provides essential information for setting up, operating, and maintaining your device.
2. Safety Information
- Read all instructions carefully before use and retain them for future reference.
- Do not expose the device to rain, moisture, or extreme temperatures.
- Avoid placing the device near heat sources or in direct sunlight.
- Use only the provided power adapter.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Dispose of batteries responsibly according to local regulations.
3. Package Contents
Please check that all items are present:
- TechniSat STERNRADIO IR 2 (White)
- Power Adapter
- User Manual
- 1 x Lithium-ion Battery (BL5C type)
4. Product Overview
Familiarize yourself with the radio's controls and connections.

Figure 4.1: Front Panel
The front panel features the speaker grille, a 2.4-inch color display, five direct selection buttons (1-5), and control buttons for power, menu, favorites, dimmer, and a rotary knob with an OK button for navigation.

Figure 4.2: Rear Panel
The rear panel includes the main power switch, a micro-USB port for power, an AUX-IN jack for external audio sources, and a 3.5mm headphone jack.
5. Setup
5.1. Power Connection
- Connect the provided power adapter to the micro-USB port on the rear of the radio.
- Plug the power adapter into a wall outlet.
- Ensure the main power switch on the rear is in the 'ON' position.
5.2. Battery Installation
The STERNRADIO IR 2 includes a replaceable BL5C Lithium-ion battery for portable use.
- Locate the battery compartment on the rear of the radio.
- Open the compartment cover.
- Insert the BL5C battery, ensuring correct polarity.
- Close the battery compartment cover securely.

Figure 5.1: Integrated Speaker and Replaceable Battery
The radio features a 2W speaker for powerful sound and a replaceable battery for enhanced portability.
5.3. Initial Setup (Wi-Fi, Time, Date)
Upon first power-on, the radio will guide you through the initial setup process.
- Language Selection: Use the rotary knob to select your preferred language and press OK.
- Wi-Fi Network Connection:
- The radio will scan for available Wi-Fi networks.
- Select your network from the list using the rotary knob and press OK.
- Enter your Wi-Fi password using the on-screen keyboard and rotary knob. Press OK to confirm.
- Once connected, the Wi-Fi icon will appear on the display.
- Time and Date: The radio will usually synchronize time and date automatically via the internet. If not, you can set it manually through the system settings.

Figure 5.2: Wi-Fi Connectivity
The radio connects to your home network via Wi-Fi for internet radio access.
6. Operating Instructions
6.1. Basic Navigation
Use the rotary knob to scroll through menus and options. Press the OK button to confirm a selection. The Menu button accesses main settings, Fav for favorites, and Dimmer to adjust display brightness.

Figure 6.1: Display and Controls
The 2.4-inch color display provides clear information, and the intuitive controls allow for easy navigation.
6.2. Internet Radio
Access thousands of internet radio stations from around the world.
- From the main menu, select 'Internet Radio'.
- Browse stations by categories such as 'Top Stations', 'Genre', or 'Location'.
- Use the rotary knob to select a station and press OK to start playback.

Figure 6.2: Unlimited Music Variety
The STERNRADIO IR 2 offers access to an unlimited variety of music, news, and stations, with 250 favorite memory slots and 5 customizable direct selection buttons.
6.3. Favorite Stations and Direct Selection Keys
You can save up to 250 internet radio stations to your personal favorites list and assign 5 of them to the direct selection keys (1-5) on the front panel.
- Saving a Favorite: While listening to a station, press and hold the Fav button until 'Saved to Favorites' appears.
- Assigning Direct Keys: In the favorites menu, select a station, then choose 'Assign to Direct Key' and select a key (1-5).
- Recalling Favorites: Press the Fav button to access your full favorites list, or simply press one of the direct selection keys (1-5) for instant access.
6.4. AUX-IN Mode
Connect external audio devices like MP3 players or smartphones to the radio.
- Connect a 3.5mm audio cable from your external device's headphone jack to the AUX-IN jack on the rear of the STERNRADIO IR 2.
- Select 'AUX-IN' from the radio's main menu.
- Control playback and volume from your external device.

Figure 6.3: AUX-IN Connectivity
Connect external audio sources via the AUX-IN port.
6.5. UPnP Streaming
Stream music from devices on your home network (e.g., a computer or NAS drive) to the STERNRADIO IR 2.
- Ensure your UPnP server is active on your home network.
- From the radio's main menu, select 'UPnP' or 'Media Player'.
- Browse and select music files from your network server.

Figure 6.4: Enhanced Music Enjoyment
Play music from connected devices via AUX-IN or stream music from your home network to the STERNRADIO IR 2 via UPnP.
6.6. Alarm Clock, Snooze, and Sleep Timer
The radio includes comprehensive alarm and sleep functions.
- Alarm Clock: Set multiple alarms with adjustable alarm rhythm (daily, weekday, weekend) and volume. Choose to wake up to internet radio or soothing soundscapes.
- Snooze Function: When an alarm sounds, press the rotary knob or a designated button to temporarily silence it for a short period.
- Sleep Timer: Set a timer for the radio to automatically turn off after a specified duration, allowing you to fall asleep to music.

Figure 6.5: Perfect Radio Alarm Clock
With alarm, snooze, and sleep functions, and specially designed radio stations for falling asleep and waking up, featuring soothing sounds such as rain, piano music, and bird song.
6.7. Display Settings
Customize the 2.4-inch color display to your preference.
- Brightness: Use the Dimmer button or navigate to 'Settings > Display' to adjust brightness in two steps.
- Monochrome Mode: The display can be switched from full color to a monochrome (black and gray) view for reduced light emission.
- Standby Display: In standby mode, the display can show time, date, and local weather information.

Figure 6.6: Weather Information
Local weather information can be displayed in standby mode.
6.8. App Control (AirMusic Control)
Control your STERNRADIO IR 2 using the AirMusic Control app on your smartphone or tablet.
- Download the 'AirMusic Control' app from your device's app store (available for iOS and Android).
- Ensure your smartphone/tablet and the radio are connected to the same Wi-Fi network.
- Open the app and follow the on-screen instructions to connect to your STERNRADIO IR 2.
- The app allows you to browse stations, manage favorites, control playback, and adjust settings remotely.

Figure 6.7: AirMusic Control Application
Control the radio via the AirMusic Control app for iOS and Android, including managing station favorite lists.
7. Maintenance
7.1. Cleaning
To clean the radio, use a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
7.2. Battery Care
The replaceable Lithium-ion battery should be charged regularly. If the radio will not be used for an extended period, it is advisable to fully charge the battery and then store the device in a cool, dry place. Avoid exposing the battery to extreme heat or cold.
8. Troubleshooting
If you encounter issues with your STERNRADIO IR 2, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Device does not turn on | Power adapter not connected, main switch off, battery depleted. | Check power adapter connection, ensure main switch is ON, charge or replace battery. |
| No Wi-Fi connection | Incorrect Wi-Fi password, out of range, router issue. | Re-enter Wi-Fi password, move radio closer to router, restart router. |
| Internet radio stations not playing | No internet connection, station offline, weak Wi-Fi signal. | Verify internet connection, try other stations, check Wi-Fi signal strength. |
| Poor sound quality | Low bit rate stream, speaker obstruction, equalizer settings. | Try a different station, ensure speaker is clear, adjust equalizer settings. |
| Battery drains quickly | Battery age, high volume usage, display brightness. | Consider replacing the battery, reduce volume, lower display brightness. |
| Device freezes or becomes unresponsive | Software glitch. | Turn off the radio using the main power switch on the rear, wait a few seconds, then turn it back on. |
9. Specifications
- Brand: TechniSat
- Model: STERNRADIO IR 2
- Model Number: 0001/3967
- Color: White
- Connectivity: Wi-Fi (WLAN), AUX-IN (3.5mm jack), Headphone Out (3.5mm jack)
- Display: 2.4-inch TFT Color Display
- Speaker Output: 2W
- Power Source: Power Adapter, Replaceable Lithium-ion Battery (BL5C)
- Special Features: Internet Radio, UPnP Streaming, Alarm Clock, Snooze, Sleep Timer, 250 Favorite Station Memory, 5 Direct Selection Keys, AirMusic Control App Compatibility, Equalizer, Standby Weather Display
- Dimensions (W x H x D): 18 cm x 10.8 cm x 5 cm
- Compatible Devices: Headphones, MP3 Player, Smartphone
10. Warranty Information
The TechniSat STERNRADIO IR 2 comes with a 2-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear. Please retain your proof of purchase for warranty claims.
11. Support
For further assistance, technical support, or warranty claims, please contact TechniSat customer service. Refer to the official TechniSat website or your purchase documentation for contact details specific to your region.





