Walker's razor xv 3.0 headset features retractable digital ear buds, hd speakers in the ear buds for wide range audio quality, and hi-gain omnidirectional microphones.The headset also has four (4) frequency modes: universal, speech clarity, hi-frequency, and power boost.Included are three (3) pairs of foam tips (s/m/l) and micro usb charging cable.Type: Electronic EarbudsColor: BlackStyle: Behind The NeckBattery: Li-ionMaterial: Polymer