Long-distance transmission capability; with a communication distance spanning 850 ft/260m; Retekess TH109 call bell system guarantees seamless connectivity of the call signal; empowering swift action in times of need ^^ Multiple alarm types; stay prepared for any eventuality with the caregiver pager; equipped with sound; light; vibration and etc; empowers to choose the most effective combination for any scenario ^^ Dual charging modes; the caregiver pager system boasts two charging methods: a charging base; and a type-c port for charging; ensures adapting to any scenario; enhancing response readiness and user convenience ^^ Low power alert; stay connected; the caregiver pager alerts instantly when battery drops below 20%; ensuring timely recharging for uninterrupted safety; immediate notification to prevent communication interruption ^^ Portable and easy to use; designed for instant use; the medical alert systems for seniors comes bundled with a base stand; back clip; hanging strap; ensuring you're always ready to call for help; wherever you are