Feature 1 Application: Portable speaker microphone with M6 connector, suitable for estalky R887, for ruggeer B8000, for F22+. 2 3.5mm Mono Headphone Jack: The 3.5mm mono headphone jack makes private communication possible. 3 Comfortable PTT: Comfortable PTT, ergonomic design, and convenient and easy operation. 4 With Clip: There is a heavy duty push to talk button on the side of the shoulder microphone and a sturdy retaining clip on the back. 5 Widely Use: Widely used by polices and security personnel. Very suitable for driving, hiking, hunting, shooting games, patrol missions, etc.Item Type: Remote Speaker MicrophoneMaterial: ABSColour: BlackConnector: M6Application: Suitable for estalky R887, for ruggeer B8000, for F22+ Package List1 x Remote Speaker Microphone