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2To select the desired radio frequency, press the « and » buttons.

Tip:To scan radio frequencies automatically, press and hold the « or » button for approx. 2 seconds.

Tip:To make sure you get a good radio signal, fully unwind the antenna and move it around until you have found a position at which reception is best.

Note:The current radio frequency is shown in the display for 5 seconds, before clock time is shown again.

3To switch off the radio, press the radio on/off button again. 

Volume

1To set the volume, press the volume increase or decrease button.

You can choose a volume level between 1 and 10.

Note:The volume level you have selected is automatically set as the volume level for the alarm as well.

Setting the display brightness

1Press the Display brightness button to adjust the display brightness.

The brightness of the display will change from high-medium-low-very low.

Demo mode

If you want a quick demonstration (90 seconds) of the gradually increasing light intensity and sound level, switch on the test function of the appliance.

1Press and hold the alarm button for at least 3 seconds.

2The appliance starts the demonstration of the alarm.

3To switch off the demonstration, press and hold the previously pressed alarm button for 3 seconds again.

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Philips HF3500, HF3505 manual Volume, Setting the display brightness, Demo mode

HF3500, HF3505 specifications

The Philips HF3505 and HF3500 are innovative wake-up lights designed to provide a natural and uplifting way to start your day. These models, part of Philips' renowned line of wake-up light products, utilize advanced technologies to simulate a gradual sunrise, helping you wake up more gently and feel refreshed.

One of the main features of both models is their ability to gradually brighten over a 30-minute period before your set wake-up time. This feature mimics the natural rising of the sun, allowing your body to adjust to waking up. By gradually increasing the light intensity from a soft glow to a bright daylight level, these wake-up lights help to signal to your brain that it's time to wake up, promoting a more pleasant start to your day.

Additionally, both the HF3505 and HF3500 include a selection of natural sounds to accompany the light, such as birds chirping or soft melodies, further enhancing the waking experience. These sounds are designed to be gentle and soothing, making the transition from sleep to wakefulness much easier. For those who prefer a traditional alarm sound, both models also come equipped with a classic beep alarm option.

Comfort and usability are key characteristics of the Philips HF3505 and HF3500. Both models are designed with intuitive controls, allowing users to easily adjust settings such as brightness levels and sound choices. Furthermore, the sleek and modern design of these wake-up lights makes them a stylish addition to any bedroom decor.

An additional feature of the HF3505 includes advanced customization options, allowing users to select from multiple brightness settings and a variety of alarm sounds, providing a more personalized wake-up experience. Meanwhile, the HF3500 is praised for its simplicity and effectiveness, focusing on delivering a straightforward and reliable wake-up function.

Both models also have a built-in snooze function for those moments when you need just a little extra time in bed. With a simple tap, you can enjoy a few additional minutes of rest before the alarm goes off again.

In summary, the Philips HF3505 and HF3500 wake-up lights provide a harmonized blend of functionality and design, using natural light and soothing sounds to foster an effective and gentle waking experience. Their advanced features and ease of use make them ideal companions for anyone looking to improve their morning routine.