Acquiescence Music: Double clink sonuds and Alice and Westminster Optional Music: Double clink sonuds and Welcome (in English) and Welcome (in Arabic) Packing: Blister Catron measurement(cm): 55.5*46.5*27 QUANTITY OF PACKAGE: 60 pcs/ctn Transmission range: 100m(open area) Approval: CE, Frequency: 315MHz and 433MHz Negative wave: -57dbm Quiescent current: 550u A Working Voltage: 4.5V Transmitting power: 220u W
