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Alarm just for Kids / Alarm

Alarm just for Kids
Alarm just for Kids

Undoubtedly, there are often many dangerous products for kids at home, such as sockets, stoves and various knives. But if alarms are used to alert children, frequent and unpleasant alarms can also affect the normal lives of adults. So we designed an alarm bell that only can be heard by kids, which guarantees the safety of the kids and does not always disturb adults.Kids can reach a much wider range of sound frequencies than adults. Most adults can hear about 20 to 14,400 Hz. Kids can hear 20,000 Hz, even much higher. Put this product next to dangerous things. It will give a sharp warning can be heard only by kids when someone passes by.

University

Zhejiang University

Zhejiang University
Hangzhou, China

Chenxi Lv,
Zhejiang University

Hanyue Xiao,
Shanghai Jiao Tong University

Yunzhao Ma,
Dalian University of Technology

Lisi Wei,
Dalian University of Technology