Retekess TW103 is a dual way window speaker system, which allow the two people talk freely.
It made of aluminum alloy, it is very durable.
High quality speaker and high-sensitive microphone, the voice is realistic and clear
It is very easy to install, you can sticker the outside speaker on the wall or glass.
Speaker volume and microphone sensitivity can be adjusted
Inside and outside speaker can be turned off separately
Retekess T117 is 4 key call button Portuguese Version Used in cafes, restaurants, nightclubs, hospitals, etc...Leisure and office Fashionable，Lightweight and easy to use ABS material, environmentally friendly, safe to use Can match multiple receivers at the same time Low power design, long standby Outdoor communication distance reaches 150 meters
Retekess TD107 Welcome Alarm with Infrared Sensor technology, multi-function, Integrated one-way Welcome Door Bell, it can support artificial synthesis or download sound, Dual color lights increase product experience, Large speaker configuration, sound can be adjusted, multi-language