Usage Tips:Digital display on LED screen: This elderly life alarm system comes with 1 caregiver pager and 2 wireless call buttons. Each button triggers a number on the pager's screen for quick identification, improving safety and convenience upgrade: This caregiver call button has 16 built-in ringtones and 3 volume levels to choose from. It also has vibration, one-button mute and low-battery reminder functions, making it more practical and convenient in specific usage scenarios Rechargeable, long battery life: The caregiver pager has a TYPE C charging port and a large-capacity rechargeable battery, which is more convenient and faster than pagers that use traditional AAA batteries and need to be replaced frequently Portable and easy to carry: belt clip design. The receiver can move with the caregiver and has a working range of nearly 500 feet. The elderly emergency button can be hung around the neck or mounted , and all accessories are included Pre-paired and expandable pairing: Two elderly help buttons and caregiver pagers are ready to use, with numbers 1 and 2 assigned by default. Each receiver can be paired with 30 call buttons, ideal for elder care products An essential part of any elder care product and gift for older men/women: This elder monitoring system is a cost-effective way to the safety and well-being of your seniors. Colour:Black Material:plastic Package Contents: 1 * Host 2 * Call Button 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.