2 Way Wireless Doorbell Intercom Indoor Outdoor, Long Range Door Intercoms System for Home with Waterproof Cover Rechargeable Battery,30 Days Long Standby Time 5 Level Volume Adjustment?3 Pack?

Additional Details from the Manufacturer

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More features

• 2-in-1 Doorbell Wireless Intercom System-You can press outdoor intercom Call Button or use the PTT button for speaking. The outdoor unit is equipped with a waterproof rain cover to prevent your outdoor unit from being damaged by water
• Long-Range Wireless - Enjoy crystal-clear communication . No WiFi/Bluetooth needed - the strong signal penetrates walls effortlessly. Working temperature: -20 degrees to 55 degrees
• Long-Lasting Rechargeable System – The doorbell intercom device is powered by a high-capacity 1800mAh battery. The outdoor unit works normally. If you press it 5 times a day and the call lasts 2 minutes each time, it can work for about 8 months. The indoor unit works for about 3 days. (Pro Tip: Keep indoor unit docked when not in use for uninterrupted readiness.)
• Customizable Alerts & Volume Control – A 2-way voice intercom can be chosen from 38 unique ringtones and 3 adjustable volume levels (High/Medium/Low). Bright LED indicators display battery life and incoming calls for at-a-glance status updates
• Certified & Ready to Use – Our intercom system is FCC/CE certified for safety and reliability. Just set both units to the same channel (A or B) and enjoy instant communication – no complicated setup required