This clip comes from the Nothing OS 2 interface, the software layer on Nothing smartphones known for its minimal, dot-matrix inspired design. The low battery sound is one of the system's short notification tones, designed to warn users without interrupting them harshly. Because Nothing phones have a distinct, loyal following among tech fans, their system sounds are often shared, compared and reused online. Creators now borrow the tone outside phones altogether, using its clean, understated feel to mark exhaustion, deadlines and devices giving up.