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

Input:
Product title: Hand Crank Mini Dynamo Flashlight Keychain - Smallest Forever Dynamo Keychain
Product feature: This amazing key-chain flashlight does not require any batteries to run, and thus will not run out on you when you need it the most., Simply turn the hand-crank a few times and press the power button for instant light., Measures only 1.75 inches.
Product brand: Nexus Gadgets
Target attributes: Beam Type
Answer: attribute: beam type
value: None
source: None