CACAZI A06 DC Battery-operated Wireless Waterproof Doorbell 300M Remote 36 Chimes Cordless Home Cordless Call Bell

PRODUCT LIST: 1 DOORBELL BUTTON 1 DOORBELL RECEIVER 1 DOUBLE-SIDED ADHESIVE TAPE 1 SCREW   Features and specifications:   1.Press the button, super learning code can freely learn to match, can be unlimited matching receiver and button.   2.The transmitter without screw chuck design to achieve waterproof and dustproof.   3.The transmitter USE a 23A12V alkaline battery (not included battery).   4.The receiver uses 3 AA alkaline batteries, no need to plug in the power supply, and the battery can be used.(not include battery).   5.Receiving distance:300 meters in open area.   6.The wireless signal will be affected by obstacles. The more obstacles, the more serious the signal loss.   7.Receiver has 4 levels(can be mute) 20-80db,36 music to choose from.   8.Transmitter size:77*46*20mm   9.Receiver size:95*65*24mm   10.Model:A06 DC Battery (no need to plug in)   Note:   The button cannot be placed on an iron door because it will interfere with the signal.   If the receiver does not ring when you press the button after receiving the doorbell, please check the steps:   1. Please confirm whether the button has a 23A12V alkaline battery installed.   2.Check if the receiver has a 3*AA alkaline battery installed.   3. Please pair the doorbells again.   How to pair signals   Press and hold the volume button of the receiver and the transmitter for about 8 seconds to successfully pair.   H