Brand: K-TE PROFESSIONAL. Device Type: Cordless Battery-Operated Chain Saw. Chain Length: 12 inches (approximately 30 cm). Battery Voltage: 128V (rated power indicating high performance). Design and Maintenance Features: Chain Tensioning Mechanism: The chain is manually adjusted and tensioned using the included maintenance wrench to ensure stability during cutting. Control and Handling: Designed with a comfortable non-slip handle, with an upper auxiliary handle for weight distribution and precise steering with one or two hands. Accessories: Two Lithium-Ion batteries. Battery charger. Maintenance wrench and screwdriver. High-quality plastic case.