BoomBest speakers with TF USB LN9036BT

BoomBest speakers with TF USB LN9036BTFeatureTypical / Likely SpecificationModel / NameBoomBest LN9036BTConnectivity / Playback ModesBluetooth, TF (microSD) card, USB flash drive, AUX input (3.5 mm), FM radioBluetooth Version / RangeProbably Bluetooth 5.0 or similar, with ~10 m wireless rangeSpeaker Drivers / OutputIn similar models: a combination like a 4″ (≈ 20W) driver a smaller driver (≈ 52 mm, 10W)Frequency Response20 Hz – 20 kHz (common for consumer speakers)Battery / PowerBoomBest models use dual 2,000 mAh batteries (7.4 V total), yielding several hours of useBattery LifeAround 3–5 hours at moderate volume (depending on usage)Charging / Power InputDC 5 V (often 1 A or 2 A) via USB (micro / Type‑C)Weight / DimensionsIn similar models, sizes around 166 × 128 × 202 mm and weight ~1.4–1.5 kgAdditional FeaturesLED indicators, buttons for mode / volume / track, possibly a built‑in microphone for hands‑free calls, an FM tuner (87.5–108 MHz)Build & MaterialsABS plastic body, metal mesh grille, perhaps spray paint finish