[Demo2]How can we test the performance of electromagnetic passive buzzer without testing equipment?

Fu Hung Da Electronics will take part in the March China household appliances and Consumer Electronics Fair. 2018.Welcome new and old customers to come to the booth to discuss it !

• Booth number: E6 Museum 6A36
• Time: , March 8, 2018, ~3 11
• Location: E6 Museum , Shanghai New International Expo Center.