voice intercom Usb charging home smart 1000m long-distance intercom, intercom , mobile call 3X Li-2000mAh (included)

Easy To Use: long distance about 1000 meters, no network, no wiring, power on and use. Material: The keys are made of plastic and silicone structure, the surface of the high gloss process, super feel. Intelligent Intercom Chip: The use of special intelligent intercom chip, strong penetration, suitable for floors 1 to 8 floors, the villa home preferred. Home Wireless Doorbell,Wireless Intercom Doorbell,Mobile Call Doorbell,Voice Intercom Doorbell,Wireless Voice Intercom Bell,Wireless Call Doorbell