Durable ABS construction with fireretardant properties for longlasting, safe doorbell use. This unit combines a sturdy build with safety features to provide reliable performance over time. Key benefits Material and safety: made from durable ABS plastic with a fireretardant texture to support safe, longlasting operation. Reliable performance: a dedicated advanced doorbell chip delivers stable, consistent operation and dependable sound quality. Clear audible alerts: builtin loudness speaker produces loud, clear notifications so you never miss a visitor, even in noisier environments. Design for consistency: engineered for stable performance and dependable doorbell signaling in everyday use. What to expect Function: a compact doorbell module with an integrated speaker and chip designed to provide reliable, audible doorbell alerts. Performance: loudness output combined with a stable, consistent signaling performance for clear visitor notification. Material: durable ABS plastic with fireretardant characteristics to enhance safety and longevity. Usability: designed for straightforward integration into typical doorbell setups, with a focus on reliable operation and clear sound. Use scenarios Residential entry: install at the front door in a busy neighborhood or near a street to ensure visitors are heard clearly, even with external noise. Small business or : place at the entry to deliver loud, intelligible alerts to staff, helping you respond quickly to customers or deliveries. Apartment or multitenant building: use at common entry points to provide dependable doorbell signaling, ensuring visitors are noticed promptly by residents or managers. This description preserves the core attributes of the product—durable ABS with fireretardant texture, an advanced doorbell chip for stable performance, and a builtin loudness speaker for clear audible alerts—while presenting them in clear, customerfriendly language and practical use cases.