Connect (at least two) duct-covers acoustically to bulid a communication system within the city.

A «unwrapped - Aktivierung städtischer Objekte» project: http://thinkunwrapped.org
Watch the movie: http://www.youtube.com/watch?v=q94EyO73Trg.

Concept developed in the «unwrapped» seminar in Graz: http://www.thinkunwrapped.org/index.php?id=75
Concept realised by the unwrapped team: http://www.thinkunwrapped.org/index.php?id=86

Step 1: Material

a walkie-talkie

Step 2: Material

a headset with a baby microphone

Step 3: Material

active loudspeakers

Step 4: Material

a wooden box, a flexible plastic, aluminium tape, glue, screws, orange spray

Step 5: Material

a bag

Step 6: Material

street tape

Step 7: Construction

wooden box:
- wooden box: 10 x 21 x 5 cm
- 1 hole for the microphone
- 2 little holes for the cables
- 4 small screws on the box (construction to fix later the plastic)
- 1 big screw (later for the electric contact)
- 4 holes on the side (to fix it later on the duct cover)

Step 8: Construction

- tape (to fix the elastics)
- elasitcs (for the walkie-talkie

Step 9: Construction

- microphone into the big hole
- each part of the headset switch into one small hole

Step 10: Construction

- stick the aluminium tape on the flexible plastic
- one headset switch cable is connected to the aluminium tape
- one headset switch cable is connected to the big screw

Step 11: Construction

- connect the head-set cable on the walkie-talkie
- fix the walkie-talkie with the elasitcs
- fix the cables with the elastics

Information:
- this antenna in not necessary