Imprint Method: Pad Print - Your advertisements are sure to get lots of attention when you include this Keychain Personal Alarm! It comes with batteries, and the swiveling keychain pulls out from the body of the unit to activate the alarm. It comes in silver or translucent blue and measures 3" x 1 1/2" x 1/2". Simply add your company's name, logo and marketing slogan before handing it out to let recipients know you truly care. The compact personal alarm packs quite a punch with its high decibel alarm to help them in case of emergency. Sound off about your brand today! Galinthus.