Windows Mobile was Microsoft's operating system for touchscreen phones and Pocket PC devices in the 2000s, and version 6.x powered many business and early smartphones before modern app-based phones took over. Its system sounds, including the file labelled Attention, were short functional alerts designed to be heard over calls and music. Long after the platform faded, the low battery chime survived on soundboards, where it is shared by former users and retro technology fans who recognise it instantly as the sound of an ageing phone giving up.
About this sound
The low battery alert sound from Windows Mobile 6.x, a brief attention chime that warned users their phone was about to run out of power soon.
This is the short attention alert that played on Windows Mobile 6.x phones when the battery dropped to a low level, lasting just over a second and cutting through whatever the user was doing. It is a clean, electronic chime with a slightly urgent edge, simple enough to be recognised instantly and serious enough to make the listener check the battery icon. For anyone who used a Pocket PC phone or an early Windows smartphone, it carries a strong wave of mid-2000s nostalgia, while for newer listeners it works as a compact, instantly readable warning that something is about to run out.