H7A Wireless Doorbell Wireless Voice Call Doorbell Intercom USB Rechargeable 200m Long Distance Automatic Call Bell Intelligent Electronic Waterproof Bells Smart Home Accessories

Features : 1.Wireless voice doorbell, talk with visitor via two-way voice intercom. 2.Outdoor-bell is power supplied by 3pcs alkaline battery, easy to replace the battery. 3.Indoor-bell is power supplied by rechargeable Li-ion battery. 4.Low power consumption, long standby time for outdoor-bell up to six months. 5.Big and adjustable speaker, clear voice, can be used as mobile interphone. 6.Long wireless distance up to 200M -Strong and stable signal transmission in big house, cover range up to 200M(without any obstacle, any block). 7.It is super convenient to answer the doorbell of the visitor at any distance in your room. Specification : Item Type: Wireless Intercom Doorbell Material: Plastic+Metallic Waterproof: IP44 Color: Black Silver, Black Gold, White Silver, White Gold Outdoor Unit Working voltage: 3 x 1.5V battery (not includes) Working temperature: -20 - 55 degrees Transmission distance: 200m in space, obstacles 50-100m Working frequency: 467MHZ Working time: more than six months Package includeds : 1 x Indoor walkie-talkie 1 x Outdoor walkie talkie 1 x USB interface cable 1 x Screwdriver Details pictures :