Photo 1 of AVANTEK Waterproof Transmitter/Push Button RB-2, Operates at 1000 Feet, IP55 Waterproof, Built-in Battery, Mini Transmitter for AVANTEK Doorbell Set

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Photo 1 of AVANTEK Waterproof Transmitter/Push Button RB-2, Operates at 1000 Feet, IP55 Waterproof, Built-in Battery, Mini Transmitter for AVANTEK Doorbell SetPhoto 2 of AVANTEK Waterproof Transmitter/Push Button RB-2, Operates at 1000 Feet, IP55 Waterproof, Built-in Battery, Mini Transmitter for AVANTEK Doorbell Set