Material: This electric doorbell is made of high quality ABS, excellent workmanship, durable. Superior performance: The electric doorbell uses wireless signal transmission, the transmission distance is far, the signal is stable, even in other rooms or floors, you can clearly hear the doorbell ringing. Application: The electric doorbell is the perfect choice for classroom, family, children's bedroom, game room, apartment, office and other occasions. Easy to install: This electric doorbell is very easy to use and does not require additional wires and tools, because the doorbell is already paired and does not need to be re-paired or connected, just plug the receiver into an outlet and fix the transmitter to the wall to use. Date First Available June 21, 2024