Wireless doorbell with loud alert and seven-color LED visual reminder. The transmitter and receiver connect wirelessly, so pressing the doorbell button triggers music and seven-color lights on the receiver for a clear, multimodal notification. Key benefits - Never miss a visitor with a loud adjustable doorbell and bright seven-color LED lights that flash in sync with the music. - Improve accessibility for night use and for hearing or vision challenged household members thanks to audio and visual alerts. - Wide coverage up to 150 square meters, suitable for larger homes or multi-room layouts. - Energy efficient and long-lasting battery operation to reduce maintenance and hazard risk. - Safe, low-power design with no overheating; uses standard AA batteries. - Easy, wall-friendly installation with wall-protecting mounting options. What it does - Transmitter and receiver communicate wirelessly. When the button is pressed, the receiver plays music and the seven-color lights flash at the same time. - The system provides both audible alert and visual indication, helping when it is hard to hear or see a traditional doorbell. Performance and features - Color and alert: seven-color LED lights provide a bright, multi-color visual cue. - Audio: loud volume with adjustable level; usable within 150 square meters. - Volume control: volume level 4 is adjustable to suit ambient noise and personal preference. - Power and endurance: low power consumption. Uses 4 AA batteries in total; 3 batteries for receivers, and 1 battery for each transmitter. Expected battery life of 3-5 months. - Safety and reliability: designed with low power consumption to minimize hazards and overheating. - Environments: suitable for various environments and everyday use; designed to function reliably in diverse conditions. Installation and compatibility - Easy installation without wall damage. Includes high-quality double-sided adhesive tape for quick mounting. - Optional screw mounting is supported for a more secure installation. - Transmitter and receiver connect wirelessly; no wiring needed between units. Use scenarios - Large home or multi-room living: place the receiver in the living room or bedroom to hear and see visitors clearly from upstairs or other areas within range. - Nighttime or hearing/vision impaired households: seven-color LED lights provide a reliable visual cue in addition to the audible alert, improving accessibility. - Busy households with pets or children: place receivers in common areas like the kitchen or hallway to ensure visitors are noticed even in noisy environments. Notes - The system operates with one transmitter and one receiver, using a wireless link for notification. - Battery installation and replacement are straightforward, with clear single-battery or triple-battery needs per device as described. This description preserves the original product’s brand intent, specifications, functions, and usage while presenting a clear, professional, and consumer-friendly overview.