1, Water proof speaker microphone
2, Good feel PTT and Pretty sound performance , 
3, With 360 degrees swivel back metal clip and convenient to wear .
4, For additional security and privacy , 3.5mm earplug is equipped ,    allowing an operation of earpiece with 3.5mm jack

Application:

1, For MOTOROLA GP300,GP88,GP600,PTX600...
2, Many connnector types are available for various two way radios of wide range brands
3, For the people work in police station,security , hospital , office , eatery ,restaurant ,entertainment place and construction site ...