Feature: 1. Function: 5W power, strong penetration, can be used for single amplifier, can also be used in conjunction with intercom, amplifier, etc 2. High Decibel: 80dB high decibel amplifier, loud but clear sound quality, can be heard clearly even in noisy environment. 3. Interworking: The desktop intercom has a variety of matching modes, can be used stand alone or interoperably with a loudspeaker or other intercom. 4. Installation: Can be placed directly on the table or hung on the wall, and there is a wall hanging hole on the back of the main unit. 5. Microphone: 360° gimbal metal hose microphone, adjustable left and right, up and down, flexible in use, not easy to wear or rust, practical in use. Specification: Item Type: Desktop IntercomMaterial: ABSPower: ≤5W Frequency: 400-480MHz Decibel: 80dB Operating Voltage: 9V Plug Voltage: AC100-240V. Package List: 1 x Desktop Intercom1 x Power Adapter1 x Manual