1. Úvod
The Hushing Sound Machine Alarm Clock F4 is a versatile 3-in-1 device designed to enhance sleep and simplify daily routines. It combines a sound machine with 30 soothing sounds, a dual alarm clock with 15 wake-up sounds, and a night light with 12 color options. This device features a backup battery for alarm functionality during power outages, a memory function to retain settings, and adjustable display brightness.

Obrázek 1: Přední strana view of the Hushing Sound Machine Alarm Clock F4.
2. Vlastnosti produktu
- Funkce 3 v 1: Integrates a sound machine, dual alarm clock, and night light.
- Zvukový stroj: Offers 30 soothing sounds, including white noise, pink noise, brown noises, lullabies, and natural sounds (rain, thunderstorm, sea waves, river, campfire, water drop, singing birds).
- Duální budíky: Two independent alarms for different schedules.
- Wake-up Sounds: 15 options, including classic beeps, light music, and ambient sounds.
- Funkce odložení: Provides an additional 9 minutes of rest.
- Noční světlo: 12 colors with 10 adjustable brightness levels. Can be turned off independently.
- Zobrazení času: 12/24-hour mode with 4 levels of adjustable brightness.
- Ovládání hlasitosti: 32 nastavitelné úrovně hlasitosti.
- Sleep Timers: Auto-off options for 30, 60, 90, or 120 minutes, or continuous playback.
- Funkce paměti: Retains last settings after power failure or reboot.
- Záložní baterie: Ensures alarm functionality during power outages (device requires constant power for full operation).

Obrázek 2: Přesview funkce 3 v 1.

Figure 3: Detailed list of 30 soothing sounds available.
3. Nastavení
- Připojení napájení: Connect the device to a power source using the provided USB cable and adapter. The device requires continuous power for full operation. The internal battery serves as a backup for the alarm function only.
- Počáteční poplatek: For optimal performance, ensure the device is fully charged before first use.
- Nastavení času:
- Press and hold the "12/24H Time Set" button to enter time setting mode.
- Pomocí tlačítek „+“ nebo „-“ upravte hodinu.
- Press the "Next Song" button (right arrow) to move to minute adjustment.
- Pro nastavení minut použijte tlačítka „+“ nebo „-“.
- Press the "Next Song" button again to confirm and exit time setting.
- 12/24hodinový formát: Short press the "12/24H Time Set" button to toggle between 12-hour (AM/PM) and 24-hour formats.
Video 1: Guide on how to set the alarm clock and other settings.

Obrázek 4: Rozložení tlačítek a jejich funkce pro snadné ovládání.
4. Návod k obsluze
4.1. Nastavení alarmů
- Set Alarm 1 or 2:
- Press and hold the "Alarm 1" or "Alarm 2" button to enter alarm setting mode.
- Pomocí tlačítek „+“ nebo „-“ nastavte hodinu budíku.
- Press the "Next Song" button (right arrow) to move to minute adjustment.
- Pomocí tlačítek „+“ nebo „-“ upravte minuty budíku.
- Press the "Next Song" button again to select the alarm sound (15 options). Use "+" or "-" to cycle through sounds.
- Press the "Next Song" button again to adjust alarm volume. Use "+" or "-" to set the volume.
- Press the "Next Song" button again to confirm and exit alarm setting. The alarm icon will appear on the display.
- Turn Alarm On/Off: Short press the "Alarm 1" or "Alarm 2" button to activate or deactivate the alarm. The alarm icon will appear/disappear on the display.
- Odložit: When the alarm sounds, press the "Snooze" button to temporarily silence it for 9 minutes.
- Zastavit alarm: To turn off the alarm completely, press any button other than "Snooze" when the alarm is sounding.

Figure 5: Key features of the alarm clock function.

Obrázek 6: Přamples of wake-up sounds.
4.2. Používání zvukového stroje
- Zapnout/Vypnout: Press the power button (bottom center) to turn the sound machine on or off.
- Vyberte zvuk: Use the "Previous Song" (left arrow) or "Next Song" (right arrow) buttons to cycle through the 30 available sounds.
- Upravit hlasitost: Use the "+" or "-" buttons to increase or decrease the volume (32 levels).
- Nastavit časovač vypnutí: Short press the "Sleep Timer" button to set an auto-off timer for 30, 60, 90, or 120 minutes. Press repeatedly to cycle through options or select continuous play (indicated by "CO").

Figure 7: Internal speaker design and volume capabilities.
4.3. Provoz nočního světla
- Zapnout/Vypnout: Press the "RGB" button to turn the night light on or off.
- Změnit barvu: Short press the "RGB" button to cycle through 12 different colors.
- Upravit jas: Use the "+" or "-" buttons to adjust the brightness of the night light (10 levels).

Figure 8: Night light features and benefits.
4.4. Zobrazte jas
- Upravit jas displeje: Short press the "Dimmer" button to cycle through 4 levels of display brightness (low, medium, high, off).

Figure 9: Adjustable time display brightness levels.
5. Údržba
- Čištění: Zařízení otřete měkkým, suchým hadříkem. Nepoužívejte tekuté čisticí prostředky ani abrazivní materiály.
- Skladování: Skladujte na chladném a suchém místě, pokud se delší dobu nepoužívá.
- Moc: Ensure the device remains plugged into a power source for continuous functionality, especially for the sound machine and night light features. The backup battery is solely for the alarm function during power interruptions.
6. Řešení problémů
- Zařízení se nezapne: Ensure the device is properly plugged into a working power outlet. Check the USB cable and adapter for damage.
- Alarm nezní: Verify that the alarm is set and activated (alarm icon visible on display). Check the alarm volume setting. Ensure the device is plugged in, as the backup battery only supports the alarm function for a limited time during power outages.
- Problémy s kvalitou zvuku: Ensure the device is placed on a flat, stable surface. The speaker is located on the bottom of the unit, so avoid placing it on soft surfaces that might muffle the sound.
- Display too bright/dim: Use the "Dimmer" button to adjust the display brightness to your preference.
- Settings not saving: The device has a memory function. If settings are not retained, ensure the device is not completely losing power for extended periods beyond the backup battery's capacity.
7. Specifikace
- Rozměry produktu: 4.25 x 4.25 x 2.2 palce
- Hmotnost položky: 7.68 unce
- Název modelu: HAC-F4
- Baterie: 1 Lithium Polymer battery required (included, for backup alarm function)
- Výrobce: Ztišení
8. Záruka a podpora
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official Hushing webUschovejte si doklad o koupi pro případné reklamace.