LOCADENCE Wireless Intercom Doorbells, Adjustable Voice Intercom Home Smart 2 Way Talk Doorbell, Electronic Doorbell for Hospitals, Hotels, Factories, Teahouses (Black)

Specification
Item Type: Wireless Voice Intercom Doorbell
Model: H8
Material: ABS
Single Intercom Power Supply Battery: 1 Lithium Ion Battery 2000mAh ( Built In Carry )
Use: Widely used in homes, offices, laboratory environments, medical, etc.
Basic Parameters:
Operating Temperature: Approx. -20?-55? / -4-131?
Transmission Distance: 1000m In The Empty Space; 20~50m Across The Wall
Working Frequency: 410M - 490M
Sound Adjustment: Three Gears Adjustable

Package List
2 x Intercom
2 x Charging Base
2 x Charging Cable (Random Color)
1 x Manual