This Bluetooth headset works perfectly on my LG Optimus Net (Net10) smart phone. All features work and work well. I suspect it will work with most smart phones with voice recognition, of any brand. The sound quality for both music and voice is excellent, with nice, rich bass, and high trebles. But you have to make sure the ear-bud gels are properly sized to fit your ear canal. If the gels are too small, the sound is tinny and tiny. Too large, and they won't fit inside your ear. This is true of all ear-bud type earphones. Voice recognition and voice commands work well, but which commands work depends on your phone model. The controls are very nicely laid out, and have different shapes for finger tips to discern which control you are touching. The battery life is very good. I can listen to music all day and all night. But how high the volume is set affects battery life. It charges with a USB to micro USB type B connectors. In my opinion, this is a well-made product. But this headset is not compatible with all LG phones, although it is probably compatible with most LG smart phones. And LG does not publish a list of compatible phones (shame on them). For example, I tried to use it with an LG 800G (TracFone) feature phone, which doesn't have voice recognition/commands. The music features worked well, and the call notification and receive call worked ok, but callers could not hear me, though I could hear them. If your not sure your model is fully supported, try borrowing a set from a friend, or a store display model, or make sure you have return privileges when you buy.