1, 35 songs selectable 2, Volume control 3, Range more than 100 meters 2 4, SMT NEW ... selection.5) Easy instillation, no wiring needed, no labour involved. (wireless doorbell)6) Easy mobility, suitable for house, villa, office, hotel ... = new AE.run.minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); AC Wireless remote gsm doorbell Doorbell