Electronics answers level 21-30

Electronics answers level 21 : COPIER
Electronics answers level 22 : CORDLESS PHONE
Electronics answers level 23 : BOOMBOX
Electronics answers level 24 : KEYBOARD
Electronics answers level 25 : RECEIVER
Electronics answers level 26 : GAME CONSOLE
Electronics answers level 27 : FLASHLIGHT
Electronics answers level 28 : THUMB DRIVE
Electronics answers level 29 : DIGITAL SCALE
Electronics answers level 30 : ELECTRIC TYPEWRITER