SILVER Bullet Hi-Fi Earphone is speciafically designed for HTC Nexus One (Google), HPiPAQ (Glisten), Motorola Crush, Samsung i920 Omnia II, PALM Pixi, Samsung T939 (Behold II) Hands-free microphone for extreme mobility and convenient communication Send/End/Playback button Unique headphone structure produces a rich, balanced audio performance in a compact in-ear design Convenient In-line rotating shirt clip