Dynex Mobile Headset for most phones – DX-EB100961 Features - For both in-car and portable use - Compact clip mic with mute button - Wearable on left or right side - Soft in-ear cushion for wearing comfort Specifications - 13mm driver - 1.2m shielded cable - 2.5mm L-shaped plug - omni-directional condenser mic - not compatible with some Nokia or Samsung phones unless adapter is purchased. This product is “open box”, in a perfect working condition.