American Door chime , Wireless doorbell ( one transmitter to two receivers )

Remote Control Distance : 350 meter in open space
Power Consumption(Standby/Transmitting:4.5uW/10mW
Power consumption of receiver standby<0.5W
Transmitter Battery : 2032/DC3V(included)
Receiver Sensitivity:>105dBm
Radio frequency :433MHz
Melody:36 Polyphonic Music(Sweet and Pure )
Receiver Power Supply : AC 110-260/50-60Hz
(Various Standard adaptors for different markets)

Certificates : CE, EMC R&TTE, REACH, PAHs, RoHs
Warranty: 1 year
Waterproof: IP44

each package includes:
1*transmitter
2*receiver
1*battery for transmitter
1*double-side adhesive sticker
 1*box

Color: White and Black
Individual Packing:Blister package or gift box
Barcode: 6926253222225