2-way voice intercom, long-range wireless intercom, waterproof intercom, doorbell system

Features:1. DOORBELL UNIT: The pack contains 2 doorbell system units, which can switch between ringing calls and intercom mode.2. INTERCOM FUNCTION: Both units can be used as intercoms for two-way conversation without shouting at the door.3. LONG RANGE: The voice intercom transmission distance can reach 1000m in open areas and 20-50m through walls, very convenient.4. INDICATOR LIGHT: The voice intercom units are user-friendly and designed with an intercom indicator light and a power indicator light, allowing users to see clearly at a glance.5. LONG BATTERY LIFE: The two-way voice intercom has a built-in high-capacity battery and adopts an intelligent power-saving chip, resulting in a long battery life.Specifications:Item Type: Two-Way Voice Intercom Material: ABS Model: H8 Battery: 3.7V 2000mAh Rechargeable Lithium Battery (Built-in) Usage: Widely used in home, office, laboratory, medical treatment environments, etc. Basic Parameter: Operating Temperature: -20℃ to 55℃ Transmission Distance: 1000m in open area, 20-50m through walls Operating Frequency: 410 MHz 490 MHow to use:Install and turn on to use.Package list:2 x Two-way voice intercom2 x Base units2 x USB cables1 x User manual