1、Wide Application: Wireless intercom doorbells is widely used in homes, hotels, villas, factories, hospitals, etc. 2、Wireless Distance: The barrier free distance of wireless voice intercom doorbells is about 1,000 meters, which requires no internet, no wiring, and can be turned on and used. 3、Intelligent Design: Voice intercom doorbells adopt intelligent and humanized design, with intercom light and power light display, and the operation is clear at a glance. 4、Working Time: The outdoor unit and the indoor unit both use 2000mAh batteries, and the outdoor doorbells work normally. It can work for about 8 months by pressing 5 times a day and talking for 2 minutes at a time, and the indoor doorbells work for about 1 week. 5、Excellent Chip: Wireless voice intercom doorbells adopt a special intelligent intercom chip with strong penetrating power , which can be used from the 1st floor to the 8th floor.