electronic sonic controlled Porsche turbo toy

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   Deniz Opal (selzero@syzito.xyz)'s status on Friday, 07-Feb-2025 22:09:29 JST Deniz Opal

   Back in olden times, we used to have remote control cars powered by sonar signals, a weird "clicker" device would make a sound that instructs the toy to turn 45 degrees. An interesting technology that requires no electricity / batteries etc. Lost to the decades.