eufy Security Video Doorbell E340 (Battery Powered), Dual Cameras with Delivery Guard, 2K Full HD and Color Night Vision, HomeBase S380 Compatible, No Monthly Fee
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    Retekess TW103 Window Speaker, Window Intercom,Independent Volume Control,Recording Function,for Travel Agency,Medical Center

    • Independent volume control; unique dynamic sound indicator; inside and outside volume knob can separately adjust the volume
    • 2m extension cable with metal sleeve; 6.5ft connection line between the main unit and auxiliary unit; more reasonable to install with stainless steel wire protection tube
    • Easy to install; just to make a small hole of about 0.7 inches in the glass; connect the external machine cable to the host through the small hole
    • Voice resources input; connect the signal input port to computers, mobile phones and other devices; broadcast information for customers
    • Two-way voice intercom communications technology; automatically identify the processing speech signals during a call; window speaker doesn't require any action
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    Independent volume control; unique dynamic sound indicator; inside and outside volume knob can separately adjust the volume
    2m extension cable with metal sleeve; 6.5ft connection line between the main unit and auxiliary unit; more reasonable to install with stainless steel wire protection tube
    Easy to install; just to make a small hole of about 0.7 inches in the glass; connect the external machine cable to the host through the small hole
    Voice resources input; connect the signal input port to computers, mobile phones and other devices; broadcast information for customers
    Two-way voice intercom communications technology; automatically identify the processing speech signals during a call; window speaker doesn't require any action

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