Feature: 1. Dual Channel Communicating: The wireless intercomunicador features dual channels, A and B, supporting corresponding call channel settings. With a simple press to talk function, it acts as a two way communicating system, offering flexibility and ease of use. 2. Exceptional Transmission Range: This 2 way wireless intercom boasts a strong transmission capacity, reaching up to 1000 meters in open areas and 20 to 50 meters through wall, making it suitable for both indoor and outdoor use. 3. Long Lasting Battery Life: Equipped with built in 2000mAh high capacity battery, the voice intercom utilizes an intelligent power saving chip to extend battery life. Users can enjoy prolonged usage without frequent recharging, enhancing convenience and reliability in daily operations. 4. ABS Construction: Made from premium ABS material, this intercom set includes two voice intercom devices and two bases. Its safety and reliability promise a long service life. 5. Versatile Application: This 2 way wireless intercom, with its clear sound quality, is ideal for diverse application scenarios such as hospitals, hotels, factories, and restaurants. Specification: Item Type: 2 Way Wireless Intercom Material: ABS Weight: Approx. 319.00g/11.25oz Single Battery: Li Ion Battery, 2000mAh (Shipped with Built in Battery) Operating Temperature: -20°C to 55°C Wireless Distance: 1000m (Unobstructed), 20m to 50m (Obstructed) Wireless Frequency: 410MHz to 490MHz. Package List: 2 x Base 2 x Wireless Intercom 2 x USB Cable 1 x Manual