18V, Telescopic Shaft, Power Source: Battery
From Amazon
Einhell Power X-Change 18/28 Cordless Strimmer With Mower Attachment - 18V, 28cm Cutting Width, Battery Strimmer Cordless Grass Cutter And Lawn Edger - GE-CT 18/28 Li TC (Battery Not Included)
Conrad Electronic
Einhell Power X-Change GE-CT 18/28 Li TC-Solo Rechargeable battery Grass trimmer 18 V Cutting width (max.): 28 cm