... 300 m Shipping Weight 1.5 kgIntroductionThis system can be used in apartments,villas,hotels,offices ... , automatic remote control* Fashion design, nice appearance* Wireless, easy to install* Adjustable volume and brightness* Operating ... Wireless video door bell, Video door phone, Wireless door phone, wireless doorphone, wireless door bell, wireless video doorphone, wireless video doorbell 2.4" Wireless ...