Product information: Applicable scenarios: running, fitness equipment, health massage, fitness and body shaping Specification: brushed 055 Black, brushed 005 carbon fiber Material: ABS Product speed: 1800 ~ 3200r/min Interface Type: DC Fast Charge Battery Voltage: 16.8V/25.2V Battery capacity: 1500/2000/2500mAh Charging voltage: 110~240V Switch Mode: Double Switch (power gear) Gear adjustment: Touch Screen 7 gear adjustment