2-way Talk Monitor Wireless Voice Intercom Security Doorbell Indoor Unit Receiver with Outdoor Unit Button For Smart Home

Specification
Item Type:  Wireless Intercom Doorbell;
Indoor unit input voltage:  5V/1A;
Color :  Black+Silver/Black+Gold/White+Gold/White+Silver;
Weight: 208g;

Technical Parameters
Material : Plastic Metallic materials;
Working voltage:  3*alkaline battery (1.5V*3) (Not Included Batteries);
Working temperature: -20-55 degrees;
Inputs: DC100-240V;
Working frequency: 467MHZ;
Transmission distance: 200 meters in space, obstacles 50-100 meters;
Certification:FCC CE ROHS;

Package Included
1 *  Indoor walkie-talkie;
1 * Outdoor walkie talkie;
1 * USB interface cable;
1 * Screwdriver;