Build your own battery powered air horn out of an cordless screwdriver.

Parts list:

2x printed half shells, PETG with supports is recomended

1x Einhell screwdriver TE-CD 12/1 Li

1x HP-Autozubehör 10930 3-Klang Kompressorfanfare 12 V

2x M6x12 srew (DIN933) + 2x Nut M6

1x M5+16 screw (DIN933) + 1x Nut M5 + 1x washer M5

From the screwdriver we use:

• the battery
• the switch
• the docking pins from the battery
• the screws for the half shells

Note: check the direction of rotating after wiring the compressor and before assembling the two half shells (the rotation direction switch from the screwdriver can not be operated in the assembled condition)