Set created by Sunskin in collaboration with Thomas Carli that includes 2 motor blocks with strokes of 4.2 and 3.4.

TECHNICAL FEATURES 4.2
Nominal voltage: 9 Volts DC
Recommended input voltage: 5 - 9 Volts DC
Power consumption: 8.5 W (MAX)
Needle exit adjustment: 4.5 mm (MAX)
Stroke: 4.2 mm

TECHNICAL FEATURES 3.4
Rated voltage: 12 Volts DC
Recommended input voltage: 5 - 13 Volts DC
Power consumption: 8.5 W (MAX)
Needle exit adjustment: 3.7 mm (MAX)
Stroke: 3.4 mm

BATTERY
Voltage range: 4 V - 12 V
Capacity: 1800 mAh
Duration: 7 h

Weight: 215 g
Dimensions: 147 mm X 40 mm

The set includes a battery charging cable.