Description
Function Description
1. Stepless speed adjustment for smooth gear shifting with extended crank.
2. Covers blind spots of human body massage with high elasticity of the frame.
3. Convenient for force application and does not shake the hand with prolonged use.
4. Large capacity battery with long-lasting endurance.
5. Built-in dual protection of hardware and software to prevent overcharging and over-discharging of the battery.







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