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  2. Samsung SPH-N270 - Wikipedia

    en.wikipedia.org/wiki/Samsung_SPH-N270

    The Samsung SPH-N270 or Matrix phone is a bar style mobile phone released in 2003, made to resemble the phone used in The Matrix Reloaded. The design crew of the Matrix worked closely with Samsung to develop a phone whose features and release date would coincide with the movie. The SPH-N270 was not intended as a mainstream phone for everyday use.

  3. Audio headset - Wikipedia

    en.wikipedia.org/wiki/Audio_headset

    Many wireless mobile headsets use Bluetooth technology, supported by many phones and computers, sometimes by connecting a Bluetooth adapter to a USB port. Since version 1.1 Bluetooth devices can transmit voice calls and play several music and video formats, but audio will not be played in stereo unless the cell phone or media device, and the ...

  4. Crystal earpiece - Wikipedia

    en.wikipedia.org/wiki/Crystal_earpiece

    A crystal earpiece typically consists of a piezoelectric crystal with metal electrodes attached to either side, glued to a conical plastic or metal foil diaphragm, enclosed in a plastic case. The piezoelectric material used in early crystal earphones was Rochelle salt , but modern earphones use barium titanate , or less often quartz .

  5. List of discontinued Bose headphones - Wikipedia

    en.wikipedia.org/wiki/List_of_discontinued_Bose...

    The QC20 model is for Android, Windows and Blackberry devices, while the QC20i is designed for Apple devices and includes volume controls on the remote. [20] The noise cancelling hardware and micro-USB supported rechargeable battery is contained with a box located near the headphone jack, similar to the QuietComfort 1. The earbuds are similar ...

  6. Type Allocation Code - Wikipedia

    en.wikipedia.org/wiki/Type_Allocation_Code

    The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM , UMTS , LTE , 5G NR , iDEN , Iridium or other IMEI-employing wireless ...

  7. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.

  8. ‘Blueprint Planet’ by Huffington Post

    testkitchen.huffingtonpost.com/blueprint

    Companies must wean themselves off fossil fuels. Danish toymaker Lego said in October that it will spend about $1.4 billion to build a wind farm off the coast of Germany.

  9. Interruptible foldback - Wikipedia

    en.wikipedia.org/wiki/Interruptible_foldback

    Interruptible foldback (IFB), also known as interrupted foldback, interruptible feedback, or interrupt for broadcast, is a monitoring and cueing system used in television, filmmaking, video production, and radio broadcast for one-way communication from the director or assistant director to on-air talent or a remote location.