Model：ITEM: HM-P189   

Power supply(chime)：AC 85V-260V

Power supply(transmitter)：Battery free

Frequency：433Mhz±0.5Mhz

Opearting range(open air)：up to150m

Sound options：32 polyphonic melody                 

Volume options：4 volume (mute included)

Package size：78.5×40.0×53.0 CM               

Packing quantity：60 pcs/ctn

G.W：15.64  KG

N.W：12.66 KG