Product features:

1. Relying on the product's own receiving / sending device, it can realize indoor and outdoor positioning without relying on other conventional networks, transmit the heart rate, posture, blood pressure of on-site search and rescue personnel, temperature, air pressure, air and other data of on-site environment, and also transmit voice system equipment

2. It is mainly used for geological disasters, forest fire prevention, Internet of things, fire fighting, military exercises, etc