1. The document describes the specifications of a notebook speaker, including its dimensions, electrical and acoustic characteristics, frequency response, and operating temperature range.
2. Key specifications include dimensions of 40x28.2x12mm, a resonance frequency of 450±20%Hz, an output sound pressure level of 82±3dB/1W from 0.5-1.2kHz, and an operating temperature range of -20°C to 65°C.
3. A graph shows the speaker's frequency response from 20Hz to 20kHz.