<p>[No battery = Peace of mind]: Why choose a battery-free system? We all know that batteries don't like humidity, sub-zero temperatures and intense heat at all. Rest assured, it is perfectly suited for outdoor use, the battery-free wireless doorbell is definitely weatherproof.</p> <p>[Don't Miss Your Package]: Another delivery notice in your Letter box ? Or, impatient customers because you are in stock in your store? Yeah... bad luck, the wireless doorbell battery died anyway, and of course it always happens at the wrong time!</p> <p>&nbsp; Incredible Technology: Guaranteed to work every time. We use a state-of-the-art automatic feed mechanism that is reliable, robust and efficient. In addition, the extended antenna gives you excellent coverage, passing through walls and panels without any problem.</p> <p>ECONOMICAL AND ECO-FRIENDLY: No more inventory and batteries, save money by using a chime kit without batteries. Also, by avoiding battery replacements, you can make an ecological gesture by avoiding the long and complicated recycling of batteries and batteries.</p> <p>[Easy and quick installation]: no complicated programming or other operations dangerous. Choose the location for the doorbell and plug the doorbell into an electrical outlet. Then you can choose the volume and melody of the ringtone that suits you.</p>