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Item Type: Wireless Intercom Doorbells
Material: ABS
Door Machine: 2000mAh 103450 lithium polymer battery (built in)
Indoor Unit: 2000mAh 103450 polymer lithium battery (built in)
Working Temperature: -20℃-55℃
Transmission Distance: About 1000 meters empty
Working Frequency: B gear frequency 462MHz, A gear frequency 434MHz
Charging Time: About 5 hours to fully charge
Music Ringtones: Optional
Ringtone Volume: 3 gear adjust (standby to adjust the volume key)
Call Sound: 3 gear adjust (call working time adjustment volume keys)
Package List:
1 x Transmitter
1 x Receiver
1 x Charging Base
1 x Charging Cable
1 x Screwdriver
1 x Instruction Manual
1 x Double Sided Adhesive
1 x Adapter Cable