http://i4pd4zpyhrojnyx5l3d2siauy4almteocqow4bp2lqxyocrfy6prycad.onion/earsandeyes/no-javascript/type/audio.html
The devices were presumably installed by the BKA (Bundeskriminalamt, Federal Criminal Police Office). 1: control unit; 2: batteries; 3: GPS antenna; 4: microphone; 5: SIM card. 2: the two batteries of the listening device; 4: microphones connected to the listening device; 6: dismantled listening device; 7: SD card.