HB01 & USB433 Wireless Emergency Button Kit

Flyingvoice SOS Button Kit (HB01&USB433), a delicate and compact SOS emergency wireless button with cool alert light, designed for emergency call scenarios. With the USB receiver dongle, IP Phone can be used to call the call center, nurse station and other places with one key in case of emergency. More Info: https://flyingvoice.com/products/iptelephone/Flyingvoice_HB01_USB433_Accessories.html