Wireless Electronic Doorbell Intercom 433MHz Non-visual Building Smart Intercom Doorbells One-Button Operation for Home Office

It's a great honor for you to visit my store. Good luck with your favorite purchases Place of Origin: China Hign-concerned Chemical : None Connection Type : WireLess Item Type : Wireless Doorbell Origin : Mainland China Certification : None Smart home platform : None Working Frequency : 433MHz External Battery Capacity : 1000mAh Music Ringtones : 5 ringtones The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom'sd policies and EU Product Safety and Compliance laws.