The concealed pull-string alarm has entered mass production.

This model of mobile phone alarm was commissioned by a European company for us to develop in 2017. It was successfully launched in the market in 2018. The function is composed of two sets of alarm modules, upper and lower. The base is equipped with a retractable wire spring mechanism. Triggering the alarm occurs when the two ends are disconnected. The charging voltage is 9V to 12V. After being dormant for five years, it has been fully optimized and upgraded and is now back in production.