GTMax Red 3.5mm Metal Stereo Headset Handsfree Soft Gel Earbud with Microphone for Samsung Caliber R850 / Trill R520 / Behold II T939 / Mythic A897 / Moment M900 / Intrepid SPH-i350 / Instinct HD SPH-M850 / Rogue U960 / Messager II R560 / Vice R561 / Tran 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