Wearable
ASNUG Neck Fan 4000mAh
The 4,000 mAh neck cooler with 10,000+ fans behind it.
£34.99or 3 × £11.66 interest-free
- 4,000 mAh battery — a full day, not an hour
- 4.4★ from 10,400+ verified buyers
- Three speeds, bladeless 360° airflow
- USB-C rechargeable, quiet enough for the office
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Free fast delivery 14-day returns 2-year guarantee
13.4% slower reaction times (and 13.3% slower working-memory responses) measured in homes without cooling during a real heatwave, versus air-conditioned homes. Cedeño Laurent et al., PLoS Medicine, 2018
Running costs
What does a cool night actually cost?
8h
1h24h
Electricity rate
ASNUG Neck Fan 4000mAh draws just 4W — about the same as an old lightbulb.
Your cool night costs
≈ 0pper night
Per week£0.05
Per month of summer use£0.24
Same month with portable AC£70.56
Based on 4W at 24.5p/kWh (uk avg). Your tariff may vary — it'll still be pennies.
- Tank capacity
- 0 L
- Noise
- 30 dB (max)
- Power
- 4 W
- Height
- 19 cm
- Weight
- 0.28 kg
- Room size
- up to 1 m²
- Speeds
- 3 + sleep
- Timer
- 12 h
- Controls
- Remote & touch panel
How loud is it?
Quieter than your conversation.
Whisper
25 dB
ASNUG Neck Fan 4000mAh
30 dB
Conversation
60 dB
Vacuum cleaner
75 dB
Quiet enough for TV evenings; sleep mode drops it lower.
The spec sheet
What it actually does, in numbers.
<1p
per hour to run
based on uk avg electricity rates
0L tank — real runtime between refills
Airflow per spec sheet
30 dB — noise at max speed
| Noise | 30 dB |
| Power draw | 4 W |
| Height | 19 cm |
| Weight | 0.28 kg |
| Running cost | <1p/hour |
| Covers rooms to | 1 m² |
Every spec on this page comes from the manufacturer's data sheet. We don't invent airflow figures or noise ratings — if a unit can't meet its claims, it doesn't go in the range.
