Retevis AI Active Noise Reduction Walkie Talkie Earpiece with Mic, Rechargeable C-Type, 2 PTT, for RT22 RT21 RT68H, Compatible with Pxton Baofeng Kenwood Two Way Radio, 2 Way Radio Headset(4 Pack)

AI active noise reduction; the single mic of walkie-talkie headset only recognizes and outputs human voice; directly filters out the ambient noise; maintains a clear and crisp voice for you ^^ Double PTT design; walkie talkie earpiece has two different sizes of PTT; one large and one small for easy use; the large size PTT is easy to use even with gloves, please press earpiece PTT during calls to release clear sound ^^ Rechargeable earpiece; capacity of battery is 180mah; noise reduction function can work for about 60 hours after a full charge; and the charging cable has common USB-C port ^^ Magnetic clip design; there is a magnetic clip on the back of PTT; easy to remove to mouth for speaking at any time; clip could be rotated 360 degrees for easy use ^^ C-type earhook; not easy to fall off; suitable for left and right ears; the earhook end could be detached and replaced with covert tube D-hook or other types if you want