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  2. Extended cost - Wikipedia

    en.wikipedia.org/wiki/Extended_cost

    In accounting, an extended cost is the unit cost multiplied by the number of those items that were purchased. For example, four apples purchased at a unit cost of $1 have an extended cost of $4 (=$1 × 4 apples). [1] By accurately tracking extended cost, a business can make more informed decisions about pricing, purchasing, and inventory ...

  3. COST Hata model - Wikipedia

    en.wikipedia.org/wiki/COST_Hata_model

    It is the most often cited of the COST 231 models (EU funded research project ca. April 1986 – April 1996), [1] also called the Hata Model PCS Extension. This model is the combination of empirical and deterministic models for estimating path loss in an urban area over frequency range of 800 MHz to 2000 MHz.

  4. Extension cord - Wikipedia

    en.wikipedia.org/wiki/Extension_cord

    Yellow NEMA 5-15 extension cord NEMA-1 extension cord, common in the United States Extension cord reel (Germany). An extension cord (US), extension cable, power extender, drop cord, or extension lead (UK) is a length of flexible electrical power cable (flex) with a plug on one end and one or more sockets on the other end (usually of the same type as the plug).

  5. Line level - Wikipedia

    en.wikipedia.org/wiki/Line_level

    Voltage vs. time of sine waves at reference and line levels, with V RMS, V PK, and V PP marked for the +4dBu line level. A line level describes a line's nominal signal level as a ratio, expressed in decibels, against a standard reference voltage. The nominal level and the reference voltage against which it is expressed depend on the line level ...

  6. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...

  7. Apple unveils headphones that cost twice as much as AirPods - AOL

    www.aol.com/news/apple-unveils-headphones-cost...

    The headphones, called AirPods Max, will cost $549 — far more than similar products from Bose and Sony that offer many of the same features, such as noise cancellation. The lofty price is more ...

  8. Phone connector (audio) - Wikipedia

    en.wikipedia.org/wiki/Phone_connector_(audio)

    Headphone and earphone jacks on a wide range of equipment. 6.35 mm (1 ⁄ 4 in) plugs are common on home and professional audio equipment, while 3.5 mm plugs are nearly universal for portable audio equipment and headphones. 2.5 mm plugs are not as common, but are used on communication equipment such as cordless phones, mobile phones, and two ...

  9. Beats Electronics - Wikipedia

    en.wikipedia.org/wiki/Beats_Electronics

    The Beats Solo Pro is an on-the-ear style headphone. Along with the Powerbeats Pro true-wireless earphones, they are part of a new generation of Beats products made from the ground up with Apple. They are the first on-ear headphones made by Beats to feature active noise canceling. They were sold alongside the Solo 3 until November 1, 2021. [53]