By simply pressing the panic button which is concealed in this smart ring, previously entered numbers can be dialled. Vibration gives the user the feedback that the alarm signal has been sent successfully. The ring is so designed that it can be worn for many occasions, whether during doing sports or in a luxurious environment. The interplay of polished metal on the outside and the black or white top side provides an appealing visual effect. The ring is available in US sizes 4 to 12.