Volume Control: Wired telephone can use the cell phone volume control slider to adjust the listening volume.
One Touch Answer Button: Wired telephone adopts one touch answer button, press it to answer or hang up the call.
3.5mm Sound Plug: The wired telephone has a 3.5mm sound plug that is compatible with a wide range of smartphones on the market.
Superior Performance: Wired telephone made of ABS,features retro styling; reduced cell phone radiation; superior sound quality; 9 feet coiled cord for added flexibility.
Sound Switch: The phone has an sound switch to further improve compatibility with different brands of smartphones. Works with most smartphones.