Feature:1. [Built In Microphone And Speaker] Long range directional microphones and speakers can transmit high quality sound even in noisy environments and help provide truly perfect long rang communication.2. [For Reinforced Spring Cable] Durable coil cord allows you extremely get long term usage experience. Remote speaker gives you a clear voice so you can hear your teammates clearly.3. [Tightly Hold] This mic can be clipped to backpack straps at our shoulder or in front for easy access and convenient communication. It is also easier to use this microphone in the car through a handheld walkie talkie.4. [Easy To Carry] Made of durable materials, easy to use, streamlined appearance, comfortable to hold. It is mostly used for patrols, large scale activities, business activities and advanced entertainment venues.5. [Applicable Models] Compatible with for mobile radio: For DR‑03T DR‑06T DR 135 DR‑135T DR‑135E DR 235 DR‑235E DR‑235T DR‑425T DR‑425E DR 635 DR‑ 635E DR‑435, etc.How to Use:Plug and playSpecification:Item Type: Shoulder Speaker MicrophoneMaterial: ABSModel: EMS-57Colour: BlackFunction: Intercom radio microphoneApplicable Models: For DR-03 DR-06T DR-135 DR-235T DR-435 DR-635, etc. Package List:1 xShoulder Speaker Microphone