Features: Advanced wireless elderly call button with 100m range, large easy press design, 90dB alarm, and 6 month standby for emergency alerts in homes or healthcare facilities. Lightweight silicone straps, IPX7 waterproof, and ABS casing ensure comfortable wear and reliable performances in any environment. Ideal for seniors, patients, and caregivers needing quick assistance in hospitals, nursing homes, or private residences. Perfect for restaurants, bars, and medicals settings where staff needs efficient customer service or patient monitoring solution. Combines wireless nurse call system functionality with caregivers pager alarm features, delivering dependable emergency signaling without complex setups or maintenance. Specifications: Component:Plastic Size:Approx.60x14x40mm/2.36x0.55x1.57inch Working voltage: DC3.7V Working frequency:433.92MHz Working current:57mA±10mA(buzzermode) 95mA±10mA(vibrationmode) Standby current:<8mA Power-offcurrent:180±5uA Receiving sensitivity:-108dBm Package Includes: 1 Set Wireless Caller note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.