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2. Common external power supply - Wikipedia

   en.wikipedia.org/wiki/Common_external_power_supply

   The common external power supply (Common EPS) was a European Commission (EC) specification for a universal charger for smartphones sold within the European Union. The specification included the use of a USB Micro-B connector and adherence to the USB Battery Charging Specification .

3. iPod Hi-Fi - Wikipedia

   en.wikipedia.org/wiki/IPod_Hi-Fi

   iPod Hi-Fi is a discontinued speaker system that was developed and manufactured by Apple Inc. and was released on February 28, 2006, for use with any iPod digital music player. [1] The iPod Hi-Fi retailed at the Apple Store for US$ 349 until its discontinuation on September 5, 2007.

4. FiiO X3 Portable Music Player - Wikipedia

   en.wikipedia.org/wiki/FiiO_X3_Portable_Music_Player

   FiiO X3 is a digital music player manufactured and marketed by FiiO Electronics Technology.The player utilizes a built-in Wolfson DAC, and is capable of reproducing music sampled at 192kHz with a sample size of 24-bits per channel, in addition to functioning as a USB audio interface.

5. Lightning (connector) - Wikipedia

   en.wikipedia.org/wiki/Lightning_(connector)

   The Lightning connector was introduced on September 12, 2012, with the iPhone 5, as a replacement for the 30-pin dock connector. [3] The iPod Touch (5th generation), iPod Nano (7th generation), [4] iPad (4th generation) and iPad Mini (1st generation) followed in October and November 2012 as the first devices with Lightning.

6. AC adapter - Wikipedia

   en.wikipedia.org/wiki/AC_adapter

   An AC adapter or AC/DC adapter (also called a wall charger, power adapter, power brick, or wall wart) [1] is a type of external power supply, often enclosed in a case similar to an AC plug. [2] AC adapters deliver electric power to devices that lack internal components to draw voltage and power from mains power themselves.

7. Digital-to-analog converter - Wikipedia

   en.wikipedia.org/wiki/Digital-to-analog_converter

   A 1990s external DAC from Audio Alchemy as an add-on for CD players, having only about 12 cm width, intended to improve the sound of older or less expensive players. Most modern audio signals are stored in digital form (for example MP3s and CDs ), and in order to be heard through speakers, they must be converted into an analog signal.

8. Portable media player - Wikipedia

   en.wikipedia.org/wiki/Portable_media_player

   On 23 October 2001, Apple unveiled the first generation iPod, a 5 GB hard drive based DAP with a 1.8" hard drive and a 2" monochrome display. With the development of a spartan user interface and a smaller form factor, the iPod was initially popular within the Macintosh community.

9. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Inductive chargers produce more waste heat than wired chargers, which may negatively impact battery longevity. [ 14 ] [ better source needed ] An amateur 2020 analysis of energy use conducted with a Pixel 4 found that a wired charge from 0 to 100 percent consumed 14.26 Wh ( watt-hours ), while a wireless charging stand used 19.8 Wh, an increase ...