Features:
voice doorbell, talk with visitor via two-way voice intercom,know who visit your home, speak to them and let them know I'm coming, please wait.
Outdoor-bell is power supplied by 4pcs battery, easy to replace the battery, indoor-bell is power supplied by rechargeable Li-ion battery. For transportation safety, we do not include batteries, thank you for your understanding.
Low power consumption, long standby time for outdoor-bell up to six months. Big and adjustable speaker, clear voice, can be used as mobile .
Long distance up to 200M -Strong and stable in , cover range up to 200M（without any obstacle, any block).
It is super convenient to answer the doorbell of the visitor at any distance in your room. Easy installation - The doorbell can be fixed on the wall with the use of adhesive stickers.
Outdoor-bell pair with indoor-bell by learning its code, 1 outdoor-bell can paired with N indoor-bells and no interference each other.

Specification:
Item Type: Intercom Doorbell
Material: Plastic
Color(Optional): Silver, Gold
Package Weight: 185g/6.5oz
Outdoor Unit
Working voltage: battery (1.5V*4)
Working temperature: -20-55 degrees
distance: 300 meters in space, obstacles 50-100 meters
Working frequency: 467.6375MHZ
Working time: more than six months
IP level: N/A
Indoor unit
Working voltage: rechargeable Li-ion battery
Working temperature: -20-55 degrees
distance: 300M（w/o any obstacle） 50-100M（w/ obstacle)
Frequency: 467.6375MHZ
IP level: N/A

Package List:
1 * Indoor walkie-talkie
1 * Outdoor walkie talkie
1 * USB interface cable
1 * Screwdriver
Quality Assurance: Our products and equipment comply with the standards and regulations related to FCC, CE and CCC. You can buy with confidence, no need to worry about quality issues.
Large volume: The speaker volume is large, adjustable, and the sound is clear. It can be easily installed on the wall with tape. The ideal distance can reach 300 meters without interference, and it can also be used as a home walkie-talkie.
Two-way voice intercom: The combination of indoor walkie-talkie and outdoor walkie-talkie allows you to communicate with visitors outside the door. The doorbell sound is highly restored, allowing you to identify visitors outside the door based on your voice.
6 months standby time: low doorbell power consumption, long standby time, outdoor clock standby time of up to 6 months, greatly saving you energy.
✔Battery powered: The doorbell is powered by 4 batteries, and the battery is easy to replace, so you don't have to worry about cumbersome steps.（ Due to logistics reasons, the battery is not included and must be purchased by yourself）