Dual-Port Fast Charge Power Bank Sale

[Format] Professional e-commerce product main image, square 1:1, cool tech-studio style with a slate-blue scene and a floating brushed-metal power bank. [Colors] Background layered slate-blue panels (#4a5a70 to #2f3a4a) with a vertical slat texture. Product in silver-grey metal. Blue pills with white text and a flame-styled blue price badge. White cable. No frame border. [Layout] The top-left carries a heavy white title over two lines. Beneath it, three small blue bullet pills run in a column. The centre-right shows the power bank tilted in mid-air with a short white cable coiled beneath it, hovering above dark minimalist side tables. The lower-right holds a blue burst badge with the price. [Subject] No people. A slim brushed-aluminium dual-USB power bank in silver, angled dynamically with a white braided short cable looped below it; dark blue furniture blocks with small brass pipe details staged in the background. [Headline] Title: "Official Authentic" / "Dual-Port Fast Charge" in heavy white characters. Blue pills: "Works with all devices", "Compact and portable", "Auto power-off when full". Lower-right badge: "Sale price" in small text above a giant white "69". [Mood] Sleek, modern and gadget-forward; cool slate tones with metallic sheen, confident tech-sale styling.