Feature: 1. The walkie‑talkie loudspeaker has a 120dB high‑pitched diffusion, allowing you to listen to more clearly and react faster. 2. Suitable for many noisy environments such as factories, restaurants, kitchens, schools, back kitchens, workshops, etc. 3. The wireless two‑way intercom is equipped with a hand microphone, and you can choose to install two‑way intercom. 4. Can be adapted to 90% of the walkie‑talkies on the market through frequency writing, and have a variety of matching modes. 5. The same frequency is to realize the interconnection of the loudspeaker and the walkie-talkie, and the entire area can be covered within the signal range. Specification: Item Type: Two Way Radio Speaker Material: ABS RF Output Power: 5W Number of Channels: 16 Frequency Stability: ±5PPM Frequency Range: 400-480MHz Theoretical Communication Range: Approx. 1-5km/1100-5500yd Plug Voltage: 100-240V Volume: 120dB Communication Method: Wireless. Package List: 1 x Amplifier1 x Hand Microphone1 x Power Adapter1 x Manual