D30 Wireless Voice Intercom Doorbell Volume Adjustable Two Way Talk Door Bell• 【Real-Time Two-Way Communication】Experience phone-like communication with this wireless intercom doorbell,allowing for hands-free conversations once connected• 【Long-Range Connectivity】Enjoy clear communication up to 400 meters in open areas,300 meters indoors,and through 3 walls,ensuring reliable coverage throughout your home• 【Compact and Stylish Design】The doorbell features a cute,compact design with a matte ABS finish for a pleasant tactile experience• 【User-Friendly Interface】Adorned with a charming smiley face button and equipped with indicator lights for intuitive operation• 【Versatile Audio Options】Choose from 4 melodious ringtones with 8 adjustable volume levels to suit your preferences Specifications:• Outdoor Unit Power: 1.5V AAA batteries (not included)• Indoor Unit Power: DC 5V/1A• Operating Temperature: -20 to 60℃• Ringtones: 4 melodies with 8 volume levels• Outdoor Unit Dimensions: 8 x 5.2 x 2.3cm• Indoor Unit Dimensions: 8 x 5.2 x 1.3cm Package included:• 1 x Outdoor Doorbell• 1 x Indoor Unit• 1 x Screw Pack• 1 x Adhesive Tape• 1 x English User Manual