Wireless Doorbell Self-Powered No Battery Door Bell, 2 Receivers Included \nProduct Details\n--Publisher: Gobikey\n--Publication date: 0\n--ISBN-13: 065-0380346344\n--\u3010Never Buy Batteries Again \u2013 Self-Powered Technology\u3011Unlike traditional battery doorbells that require regular battery changes or recharging, this Gobikey wireless doorbell uses a self-powered transmitter. Each press generates its own electrical power, eliminating the need for any batteries in the push button. No battery to replace, no hidden costs, and no sudden failure \u2013 true maintenance-free operation for years to come.\n--\u30102 Receivers Included \u2013 Cover Your Entire Home\u3011Most wireless doorbells come with only one receiver, but this Gobikey cordless doorbell includes two plug-in receivers. Place one upstairs and one downstairs, or use them for front and back doors simultaneously. Never miss a visitor whether you\u2019re in the kitchen, bedroom, or garden. No need to buy an extra receiv.