ky3108

1.the doorbell sound is 'DingDong' the sound. 2.Installs the power switch in the entrance appropriate position, facilitates Model:KY3101Sort Door bellName Door bellExport Packing Unit Dimension Carton Dimensiont Unit Weight Net Weight Gross Weight The use power source is: 220VAC,50/60HZ.the doorbell sound is DingDong the sound. Installs the power switch in the entrance appropriate position, ...