KENMAX Air Tube FBI Earpiece Headset with Remote PTT Mic for Motorola XPR6300 APX7000 XiRP8200 DP3400 DGP4150 The hidden microphone is located in the side of PTT switch;a remote microphone with push to talk button you can clip anywhere The soft plastic ear bud fits snugly to either left or right ear and deliver a great sound even in noisy places by air acoustic tube. Excellent for use in police, military, nightclubs, bars, paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments. Double-sided detachable parts, free to assemble, convenient to replace worn / dirty Clear Acoustic Tube Ear bud, so always keep your equipment top level. Transparent acoustic tube earpiece could be invisible by transforming into the surrounding environment. So, it is not easily detected by the others when you hide the transparent tube earphone under the collar and. This is ideal for discreet communications.