Practical & Reliable: Ideal as an alarm for individuals who may need quick assistance, such as the elderly, children, disabled persons, pregnant women, or those who are unwell. Since caregivers cannot always be present, simply press the call button to receive timely care without shouting. Can also be used as a doorbell. Long Range: Up to 80 meters range in open areas (walls and obstacles may reduce signal strength). Utilizes 16-bit encoding to prevent interference from other devices, ensuring reliable performance throughout your home. Multiple Alert Options: Choose from 38 different alert tones with sound and light indicators. Adjustable volume with 4 levels, including mute option, up to 95dB. Receiver features an integrated LED torch for added convenience during emergencies. Flexible Placement: Waterproof transmitter includes a lanyard for wearing as a pendant or placing nearby, such as at a bedside. Receiver can be wall-mounted, placed on a surface, or carried in a pocket. Transmitter has IP54-rated water resistance for improved durability. Low Battery Indicator: If the receiver emits a repeating "Ding, Ding, Ding" sound (three times), it indicates low battery—please recharge promptly. Loss of connection due to very low battery is normal; simply re-pair the devices manually. Receiver is USB rechargeable; transmitter operates on one button cell battery (not included).