The walkie talkies penetrate walls, floors, steel and concrete and have a range up to 100ft/30m. They have flexible antennas so they will safely fit into your pocket when not in use, and come with an on/off switch on one side, a talk button on the other, and code key button on the front to communicate in morse code. The walkie talkies each require 4 x AG13 batteries which are included in the pack. Measure: 5cm (l) x 4.5cm (w) x 3cm (d) 15.5cm length including antenna. For ages 6 and above - Min Order: 12 units