Linbell Wireless Doorbell Waterproof IPX7 Self-powered No Battery Door Bell G2 Main Features: • The first self-powered wireless door bell • No battery is require so the product is even more safe and stable • Lightweight, more attractive and compact • Just needs you to press a built-in button called worm gear plane generator to produce power • With special energy harvesting technology, the new wireless bell requires a very tiny pressure only 350g • After receiving signal the receiver emit sound and small light hint • The receiver features 4 levels of volume and has 38 songs to choose • Inside hidden LED design, easy to use • Never be afraid of wet hands any more, safe to use always • We guarantee 200000 pressures • The transmission distance between emitter and receiver is 100m • The receiver has 3 relay functions, so the transmission distance can be expand to 300 meters |