1. 3-speed cooling fan, silent design, long-lasting battery life, intelligent dual control2. Simple control of cooling and fan speed, free to use3. High-definition digital display, display temperature and power4. Enlarge the air outlet, the wind is smooth and soft, refreshing and comfortable5. Semiconductor refrigeration, comfortable to wear6. Applicable area: less than 10 square meters7. Material: ABS/PC/electronic components8. Power mode: USB9. Battery capacity: 2000mah10. Noise: below 70dB11. Rated power: 3W12. Input current: 1A13. Rated voltage: 5V14. Battery life: 6-8 hours

http://olla.gr/hl10-outdoor-leafless-hanging-neck-cooling-fan-white/