LED flash is suitable for the elderly and hearing impaired. work in -4° F -140° F. IP55 dust-proof and waterproof protection. The receiver uses an optimized circuit design. 【Wireless Radio Bell and Warranty】 Doorbell Sets Included: 1 Wireless Doorbell Transmitter and 1/2 Doorbell Receiver, 3M Ticker, CR2023 Battery Included.
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