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A batteryless radio is a type of radio receiver that does not require the use of a battery to provide it with electrical power. Originally this referred to units which could be used directly by AC mains supply (mains radio); it can also refer to units which do not require a power source at all, except for the power that they receive from an ...
Panasonic Stereo Cassette Player RQ-JA63. The first portable audio player available to the general public, the Sony Walkman, was introduced in 1979 and sold very well.It was much smaller than an 8-track player or the earlier cassette recorders, and was listened to with stereophonic headphones, unlike previous equipment which used small loudspeakers.
Shower CD & Radio with a clock. A shower radio is a battery-powered radio that is waterproofed to allow it to be used in a bathroom or other wet environment. More generally, a shower radio is a shower speaker with an integrated radio functionality. Some versions also include a CD player and/or a clock. Shower radios generally lack headphone ...
Most boomboxes were battery-operated, leading to extremely heavy, bulky boxes. [66] Most boomboxes from the 2010s typically include a CD player compatible with CD-R and CD-RW, which allows the user to carry their own music compilations on a higher fidelity medium. Many also permit iPod and similar devices to be plugged into them through one or ...
Some MP3 players can encode directly to MP3 or other digital audio formats directly from a line-level audio signal (radio, voice, etc.). [ citation needed ] Devices such as CD players can be connected to the MP3 player (using the USB port) in order to directly play music from the memory of the player without the use of a computer.
Rockbox is a free and open-source software replacement for the OEM firmware in various forms of digital audio players (DAPs) with an original kernel. [2] [3] It offers an alternative to the player's operating system, in many cases without removing the original firmware, which provides a plug-in architecture for adding various enhancements and functions.
The loosely defined category of S1 MP3 players is comprised by a large amount of then-inexpensive handheld digital audio players. [1] The players were mainly widespread around 2005–2006 [ citation needed ] but the series continued for years afterwards, blurring into that of so-called " MP4 players " employing S1 and competing architectures.
Wireless microphone receiver racks backstage at a large televised music awards event Wireless microphone and radio receiver. There are many types of receiver. True Diversity receivers have two radio modules and two antennas. Diversity receivers have one radio module and two antennas, although some times the second antenna may not be obviously ...