How to read a sound-bar specification sheet

The D02 listing is short and specific: JIELI CPU, 2 × 5 W, Bluetooth 5.0 to 10 m, S/N ≥ 85 dB, dual 52 mm 4 Ω drivers, 200 Hz–20 kHz, 1200 mAh pack, USB plus battery, play and charge each ≥ 3 hours at 50% volume, colorful LED, audio cable and USB cable in the box. Inputs are Bluetooth, TF, USB, AUX and FM — no HDMI ARC on the published list.