The chip is a 20-millimeter square, about 7 millimeters thick, and each day, it dispenses 30 micrograms of a hormone called levonorgestrel, which has already been used in several kinds of contraceptives.
A woman can turn the device on and off with a click off a button so unlike other contraceptives a woman doesn’t have to go to a clinic to deactivate it. It also lasts up to 16 years.
The chip is implanted under the skin of the buttocks, upper arm, or abdomen
It was developed developed by MicroCHIPS of Lexington, Massachusetts, the device will begin testing in 2015. The goal is to have it on the market by 2018.