GTMax Red 3.5mm Metal Stereo Headset Handsfree Soft Gel Earbud with Microphone for Sprint HTC Evo 4G Rugged construction with small form factor, lightweight. Bullet head for durable use Send/End/Playback button Microphone button can also display music with double click Fashion-conscious, ergonomic design Noise-isolating in-ear fit Two pairs of extra silicone ear fittings Compatible with all cellular phone or MP3 player with 3.5mm earphone jack