Retevis IP54 Remote Speaker Microphone Mercury After Market It can be tightened with

It can be tightened with a 24mm spanner which makes the turning tighten

1 x Adapter(US/UK/EU/AU)

These Auto Bailer are great for allowing the water to get out of the IRB when moving and not letting the water in when not moving

Color :black

Kenwood NX

Retevis IP54 Remote Speaker Microphone Mercury After Market It can be tightened withDescription: IP54 waterproof. High quality louder speakers and microphone units provide clear audio communication. Ergonomics design, feel more comfortable. Rugged design reinforced cable, tensile resistance10 kg. Sturdy plastic 360 rotating clips. With 3. 5 mm earphone jack. Suitable for fire fighting department, police, shopping malls, hospitals, airport staff to use. Speaker Specification : Dimension:45mm Sensitivity: 954dB@1KHz Impedance: 8 Rated