Dadiaei Wireless Intercom Doorbell for Home & Classroom, 2-Way Hands-Free Communication, 1KM Range, 38 Chimes, Battery Operated with Mute Mode (1&2, White)

This wireless doorbell offers an impressive 1000-meter open-space transmission range, ideal for 1st to 8th-floor installations. Its strong signal ensures clear two-way intercom even through partitions (20-100 meters). Perfect for homes, offices, or multi-story buildings with reliable connectivity. Sleek & Ultra-Thin Design At just 18mm thick, this doorbell is slimmer than most competitors (22mm+), offering a modern, lightweight feel. The high-gloss finish and plastic+ key structure provide a premium touch, far superior to all-rubber alternatives. Easy to hold and stylish for any entrance. Long-Lasting 2000mAh Battery Both outdoor and indoor units feature real 2000mAh lithium batteries. The outdoor unit lasts ~8 months (5 presses/day, 2-minute talks), while the indoor unit runs ~1 week per charge. Energy-efficient with quick 5-hour charging. Smart Features & Intercom Function Includes intercom/power lights for clear status visibility. Supports two indoor units—press CALL to ring both, or TALK for direct intercom. 38 ringtones and 3 adjustable volume levels cater to personal preferences. Weatherproof & Frequency Options The rainproof outdoor unit detaches for charging. Dual-frequency modes (A 434MHz, B 462MHz) combat interference—switch gears (0/A/B) on both units simultaneously for crystal-clear calls. Works in -20°C to 55°C.