... and facile 2.LED indicator 3.suitable for many places AC Wireless Digital Doorbell (LS-V003A)1. Feature:Wireless fixed, ... fixed or pasted. It is application in bedroom, office, restaurant, factory, dormitory or any other place where need help. You won ... digital world2. Product Specifications:The work voltage of the receiver: AC 220VStatic electricity of the receiver ≤0.45mAWork frequency: 315MHzRemote ...