Motorola PMMN4073AL conveniently clips to your shirt pocket or lapel and enables easy communication without having to remove the radio from your belt. The IMPRES audio feature optimizes your audio when operating in noisy environments. The Windporting feature is specifically designed for windy outdoor environments and dramatically reduces the noise caused by howling winds and harsh weather. A 3.5mm audio jack available to attach earpieces for discreet communications. Compatible Radios: XPR3000 Series DEP550E DEP570E DGP8050EELITE DP2400 (and E) DP2600 (and E) DP3441 XIRE8608I XIRE8628I XIRP6600I XIRP6620I