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  2. Use this simple trick to make your phone speaker louder - AOL

    www.aol.com/news/2015-08-04-use-this-simple...

    The shape of the bowl will work as an amplifier and the sound coming out of your phone will be much louder than before. Step 3 - Enjoy your music now that you can hear it. More from AOL.com:

  3. Clock (Apple) - Wikipedia

    en.wikipedia.org/wiki/Clock_(Apple)

    Clock is a timekeeping mobile app available since the initial launch of the iPhone and iPhone OS 1 in 2007, [1] with a version later released for iPads with iOS 6 (however could unofficially be installed before [2]), [3] and Macs with the release of macOS Ventura. The app consists of a world clock, alarm, stopwatch, and timer.

  4. Off-hook tone - Wikipedia

    en.wikipedia.org/wiki/Off-hook_tone

    In the United Kingdom, a warbling signal sounding rather like an alarm siren is played at steadily increasing volume to a telephone left off-hook and unused on telephone lines provided by the BT Group and many PABX extensions. It is sometimes referred to as a howler. In some cases it is composed of the DTMF tones * and # played alternately.

  5. Vibrating alert - Wikipedia

    en.wikipedia.org/wiki/Vibrating_alert

    Video: Vibrating alert on an iPhone 4. A vibrating alert is a feature of communications devices to notify the user of an incoming connection or message. [1] It is particularly common on mobile phones and pagers and usually supplements the ring tone. Most 21st-century mobile phones include a vibrating alert feature, as do smartwatches.

  6. This alarm clock can help make waking up easy - AOL

    www.aol.com/2020-03-13-this-alarm-clock-can-help...

    For premium support please call: 800-290-4726 more ways to reach us

  7. This alarm clock can help make waking up easy - AOL

    www.aol.com/entertainment/2020-03-13-this-alarm...

    Whether you're an early riser by nature or you want to be one, you may want to consider upgrading your AM alarm to a Lumie Bodyclock.

  8. Piezoelectric speaker - Wikipedia

    en.wikipedia.org/wiki/Piezoelectric_speaker

    A piezoelectric buzzer. The white ceramic piezoelectric material can be seen fixed to a metal diaphragm. When fixed to a metallic diaphragm and excited with an alternating voltage, the diameter of the disc varies by a small amount, this causes dishing of the diaphragm which gives a much louder sound.

  9. Alarm clock - Wikipedia

    en.wikipedia.org/wiki/Alarm_clock

    This is an accepted version of this page This is the latest accepted revision, reviewed on 23 January 2025. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...