const updateHeaderMetrics = () => { const header = document.getElementById('header'); const rect = header.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); }; window.addEventListener('DOMContentLoaded', updateHeaderMetrics); window.addEventListener('resize', updateHeaderMetrics); const header = document.getElementById('header'); const resizeObserver = new ResizeObserver(entries => { for (let entry of entries) { const rect = entry.target.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); } }); resizeObserver.observe(header);

2/5

MC502 Power Bank: Typc & Lightning, Pioneering Charging Innovation

Revolutionary Interface Design, Redefining Portable Power

$7.90

$46.00

-$38.10

color-

blue

Quantity

Sustainably made

Secure payments

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Shipping

Estimated Delivery：Feb-07 - Feb-11

Vendor by:

SKU: -blue-A0018861

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