Description:

Easy to change the strings, clockwise or counterclockwise switch to control string tension.
Easy to operate, saving time and effort.
Built-in rechargeable li-ion battery, charge via included USB cable.
Compact and lightweight, it is easy to store and carry.
Suitable for folk guitar, acoustic guitar, electric guitar, etc.

Specification:

Material: ABS Plastic
Winding Speed: Max. 150KHZ
Overcharge Protection Voltage: 4.3V
Working Voltage: 2.7-4.3V
Battery: Li-ion 3.7V 800mah
Working Speed: 5rpm/s
Charge Time: 2-5h

Size Chart:

120x100mm/4.72x3.94inch

Package Includes:

1x String Winder
1x USB Cable

weight: 200g