18V, Power Source: Battery
From Amazon
Bosch Home and Garden Cordless Grass Trimmer EasyGrassCut 18V-26 (Without Battery, 18 Volt System, Cutting Diameter: 26 cm, in Carton Packaging), New Design | Classic Green
Conrad Electronic
Bosch Home and Garden EasyGrassCut 18V-26 Rechargeable battery Grass trimmer w/o battery 18 V