The Dewalt 54V XR Flexvolt Split Boom with String Trimmer with high-efficiency brushless motor - Delivers up to 60mins runtime (9.0Ah) The Dewalt DCMAS5713X1 is a Split Boom machine with a Brushless Motor, powered by a supplied 18/54 XR 3.0Ah/9.0Ah Battery. The split boom comes with a String Trimmer but has the capability to attach other tools in the range. Features: Expansion product for 54V FELXVOLT System user-more outdoor tools to get the job done High-efficiency brushless motor - Delivers up to 60mins runtime (9.0Ah) 38cm swath and 2.4mm twisted line for efficient cutting performance Attachment capable split boom, complimented by String Trimmer, Pole Saw, Pole Hedge and Brush cutter heads Well balanced design and split shaft for compact storage and easy transportation Comes With: Dewalt Flexvolt 18/54 XR 3.0Ah/9.0Ah Battery DCB118 Charger Grass Trimmer Head Specification: Battery Type: Lithium-Ion Battery Voltage: 54V Battery Capacity: 9 Ah Brushless: Yes Carry strap: Yes Secondary handle: Yes A weighted sound power dB: 100 dB(A)