2 Way Voice Intercom H8 – doorbell and two way intercom system Clear two way communication inYour home or office - 2 doorbell units per pack that switch between ringtone call and intercom mode for flexible use - 2 intercom units for two way talk without shouting through the space - Long range performance: up to 1000 m in open area, and 20 to 50 m through walls - Built in rechargeable battery with intelligent power saving chip for long battery life - Intercom units include dedicated intercom light and power light for easy status at a glance - ABS construction for durable everyday use Key specifications - Model: H8 - Material: ABS - Battery: Rechargeable lithium battery 3.7V 2000mAh (built in) - Use: Suitable for household, office, laboratory environment, medical treatment, etc - Working temperature: -20 to 55 C - Transmission distance: 1000 m in open area; 20 to 50 m through wall - Operating frequency: 410 MHz to 490 MHz Package contents - 2 x 2 Way Voice Intercom units - 2 x Base units - 2 x USB cable - 1 x User Manual What makes it practical - Easy switch between doorbell and intercom modes lets you decide how to respond at the door and inside rooms - Two units function as a compact internal intercom system for conversation across spaces without raising voices - The long open area range is useful for larger homes, yards, or office layouts, while the through-wall range supports walls and partitions - Built in battery and power saving chip reduce the need for frequent charging, supporting longer use between charges - Visual indicators (intercom light and power light) provide quick status checks use scenarios - Home entry and hallway talk: answer visitors at the door from another room or floor, or communicate with family members in the living room, kitchen, or upstairs - Small office or shop: coordinate with a colleague at reception or in a back room without shouting across desks - Laboratory or medical treatment environment: enable quiet, hands free two way communication between work areas or patient rooms while maintaining a controlled workflow Note: This description maintains the same model, function and specification details as the original product.