About Deal
https://www.amazon.nl/dp/B0F7G7WV4Q/100 Speed Settings
Battery: 4,000mAh
13,500 RPM
16 hours (low) / 3 hours (high)
5"D x 1.7"W x 3.7"H
Weight: 8.8oz
5 wearing methods
Roller-style speed adjustment
Can charge a phone while in use
LED display speed setting
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