Audio 3.5mm Stereo Headset Handsfree with Microphone for LG Optimus F7 US780 Brand new non-OEM. Compatible with All Cellphone and Smartphone models with 3.5mm Audio Jack Keep your hands free and on the wheel Built-in microphone for handsfree conversations. Cord mounted ON/OFF button which lets you take calls and hang up easily. Enjoy music with superb sound quality stereo headset.