Feature:1. Soft Keys: Four user programmable "soft" keys are provided on the microphone, allowing you to easily use commonly used menu items or front panel key functions.2. Easy to Use: The push to talk button and microphone are located on the accessory, which is convenient and quick to use. Produce excellent transmission audio clarity, as well as powerful speakers.3. Fiber Thread: Also called yellow denier and bulletproof yarn. Under the same quality conditions, it is 5 times the strength of steel wire, 2.5 times that of E grade glass fiber, and 10 times that of aluminum.4. Backlit Microphone: Allow direct keyboard frequency input or keyboard memory channel call. During transmission, osmo allows manual input of dtmf tones for automatic patching.5. Compatible: For FT‑1500 FT‑1802 FT‑1900 FT‑2600 FT‑2800 FT‑2900 FT‑3000 FT‑7100 FT‑7800 FT‑8100 FT‑8500 FT‑7800R FT‑8800R0900R FT‑8800R09 ‑2900R FT‑1802M FT‑2800M, etc.How to Use:Plug and playSpecification:Item Type: SpeakerModel: MH48Material: ABSColour: BlackFunction: Microphone SpeakerSensitivity: 58dBCable Length: Approx. 1m/3.3ftImpedance: 58ΩApplicable Models: For FT-90R, for Aeron, For SDRA Condensing, For FT-7800 Condensing, For FT-8800, For FT-8900, For FT-1900, etc Package List:1 x Speaker1 x Clip2 x ScrewNote:Please allow 2‑3cm/0.8‑0.12in error for manual measurement