• the wireless system make installation easy and brings no effect on your interior decoration
• the ultra-distance remote  control (100meters long ) meets the need of various buildings
• built-in envi.-port. elec. economiz. system , with low power consumption , alkaline battery may last for one year . ( 20 Times / day)
• combination of quadric- partial tone  ,the tone has been identified by music master .it's really the quarantee  of high quality and our confidence
• with loud and musical noise ,it can be placed anywhere indoors
• it's suitable for home , office building , factory ,hotels and reception hall ,etc. with it  ,you won't miss every visitor
• one LED lamp in the doorbell speaker
• Area size of Large Button : 45x65mm (WxL)
• Soft Ding Dong / Golden Melody
• included double-side sticker and screws

made by hARD PVC

Transmit  :

Receiver :

Brand  " EXPERT " :

" EXPERT " Has Always been laying stress on the environment Protection

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