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PATPET Wireless Dog Doorbell for Dog Potty Training – IP65 Watrerproof Touch Button with 55 Melodies 5 Volume Levels LED…

Amazon.com Price: $25.48 (as of 04/10/2023 23:53 PST- Details)

Easy to trigger: Large and sensitive contact surface is suitable for dogs of any size, even the puppy.
No harm to the wall: Mountain Base design, no need to remove the base to replace the battery.
58 Tones & 4 Volume Levels: You could choose the music and mode you need; Silent mode does not affect the lunch break.