Tracking device performance with 性能
Kanji Explanation: Ability and capability with 能

Professor Agasa gives Conan a tracking device. He eagerly looks for an opportunity to see how it works.
- コナン:
- 「そうだ!蘭に付
( けてこれの性能( 試( してみっか!!」- “I know! I'll stick it on Ran and see how it performs!!”
Key Points
性能
( = performance or capabilityHere 性能
( refers to how well the tracking device works.
これの性能
( points to the gadget in handこれ means “this one” or “this thing”, namely the tracker Agasa gave Conan.
The phrase means “this thing’s performance”.
試
( してみっか is casual “shall I try testing it?”試
( してみっか is a rough spoken version of 試( してみるか.