This earpiece is designed to work with most iPhone & Samsung phones that has a standard 3.5mm jack socket. This listen only covert earpiece has excellent voice quality, is small and more concealed than any other earpiece and enables you to use a radio without attracting attention. The clear acoustic tube is hidden behind the ear and cables routed under clothing. It is ideal for noisy and quiet environments as it helps block out ambient noise and incoming radio traffic is private to the wearer and impossible to hear by someone stood nearby.