Computer speakers

The signal input connector is often a 3.5 mm jack plug (usually color-coded lime green per the PC 99 standard); RCA connectors are sometimes used, and a USB port may supply both signal and power (requiring additional circuitry, and only suitable for use with a computer).

Some computer speakers have equalization features such as bass and treble controls.

Bluetooth speakers can be connected with a computer by using an Aux jack and compatible adaptor prove instrumental.

[2] More sophisticated computer speakers can have a subwoofer unit to enhance bass output.

Laptop computers have built-in integrated speakers, usually small and of restricted sound quality to conserve space.