The wireless doorbell XO SF11 features smart multicolor lighting that flashes and 45 melody options for clear alerts in any environment. The receiver meets European standards with a wide voltage range (100–260V) and the IP44 waterproof transmitter ensures reliable operation both indoors and outdoors. Designed for durability, it operates in extreme temperatures and offers a stable long-range wireless connection.

• Product name: XO-SF11 Smart Doorbell with Multicolor Lighting
• Product specification: One-to-one system (Transmitter & Doorbell)
• Waterproof rating: Transmitter IP44
• Operating temperature: -30°C to +70°C
• Operating frequency: 433.92MHz ± 75kHz
• Doorbell sounds: 45 musical tone options
• Receiver voltage: 100–260V / 50–60Hz (wide voltage range)
• Transmitter battery: 12V 27A eco-friendly lead-free certified battery
• Operation: Plug & Play