✅ OVERVIEW
| Feature | Specification |
|---|---|
| Type | Cordless stick vacuum with onboard handheld unit |
| Colour | White with navy and brass accents |
| Battery Runtime | Up to 40 minutes (Eco mode) |
| Dust Capacity | 0.42 L bin with 1.3 L auto-empty dock |
| Charge Time | Approx. 4.5–5 hours |
| Filtration | Anti-Allergen Complete Seal (99.9% dust capture) |
| Noise Level | Approx. 82 dB(A) |
| Weight | Approx. 2.7 kg |
| Cleaning Modes | Auto-adjust brush roll, Eco, Boost |
| Brush Features | Self-cleaning brush roll, anti-hair wrap |
| Smart Features | LED headlights, quiet charge dock |
| Docking Station | Auto-empty base holds up to 30 days of dust |
| Warranty | 5 years (2 years for battery) in UK |
🌟 HIGHLIGHTS
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Auto-empty dock transfers dirt into a sealed base—hands-free for up to 30 days
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Up to 40 minutes runtime on a single charge in Eco mode
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Lightweight and easy to manoeuvre — only 2.7 kg
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Self-cleaning brush roll removes hair with every pass
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LED headlights help spot hidden dust and debris
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Anti-Allergen Complete Seal captures 99.9% of dust and allergens
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Converts to handheld vacuum for stairs, cars, and upholstery
⚙️ PERFORMANCE & BUILD
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HyperVelocity suction for deep carpet and hard floor cleaning
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Auto-sensing floor head adjusts between surfaces
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Dock quietly charges and empties the vacuum after every clean
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Designed for allergy-conscious homes and pet owners
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Durable build with simple maintenance and washable filters
📦 WHAT’S INCLUDED
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Shark BU3521UK cordless vacuum
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Auto-empty charging dock
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Crevice tool
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Pet multi-tool
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Charging cable
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Wand clip
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User manual & warranty registration info
