Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Factory-Reconditioned: Hitachi WH18DBDL 18-Volt 3.0-Ah Cordless Brushless Lithium-Ion Impact Driver, With 2-Batteries and Charger
Product description: The Hitachi WH18DBDL impact driver is part of a series of 18V Brushless Lithium Ion cordless tools. Hitachi's Brushless motor technology delivers more power to the motor by minimizing unnecessary energy loss through friction and heat. Managed by a micro-processor chip that efficiently delivers current flow to the motor, Brushless tools experience up to 50% longer run time between charges, increased power, and extended durability with essentially no maintenance. Hitachi's signature ergonomic design for the tool body makes it extremely well-balanced and comfortable for extended use.
Product feature: Li-Ion^automatic screwdriver^battery drill^battery driver, Brushless motor technology for greatly increased run time and tool durability, Professional grade power with 1,420-pounds of turning torque, 3,200-BPM and up to 2,600-RPM, Limited and continuous impact modes for ultimate control when driving small fasteners or driving into soft material, Features a metal belt hook, digital control panel, LED light, and a battery indicator; Includes (2) batteries, a charger and more, Li-Ion automatic screwdriver battery drill battery driver, Brushless motor technology for greatly increased run time and tool durability, Professional grade power with 1,420-pounds of turning torque, 3,200-BPM and up to 2,600-RPM, Limited and continuous impact modes for ultimate control when driving small fasteners or driving into soft material, Features a metal belt hook, digital control panel, LED light and a battery indicator; Includes (2) batteries, a charger and more
Product brand: Hitachi
Target attributes: Voltage
Answer: attribute: voltage
value: 18v
source: product description
attribute: voltage
value: 18-volt
source: product title