With COVID19 primary care clinicians are increasingly asked to consult on the phone or by video. People can tell us their pulse/ use an app like HeartRatePro to record their pulse/ record their temperature & email photos of skin lesions/ rashes - but it would be very useful to hear their breath sounds / heart etcThere is a smartphone case; https://stethio.com/ but in this time of compromise, can anyone develop an attachment that people will have in their homes (eg yoghurt pots etc) that might act as a useful transducer when held against the microphone of the phone?...or .. could a 3D printed attachment do this that could be widely distributed?(Background picture: https://upload.wikimedia.org/wikipedia/commons/d/d2/Stethoscope-2.png Sonarpulse. origenal:Huji Creative Common