•【Waterproof & Dustproof Emergency Button】The emergency call button features a screwless chuck design,making it waterproof and dustproof without the need for a rubber ring,ensuring durability and reliability. •【EU Plug Receiver with Wide Voltage Support】The receiver plugs into an AC socket with an EU plug and supports a voltage range of 110-240V,making it ideal for various household power configurations. •【Long Battery Life for SOS Button】The SOS call button operates on a long-lasting CR2032 battery,ensuring consistent performance for emergency situations without frequent replacements. •【Up to 80 Meter Wireless Range】With an open-area receiving distance of up to 80 meters,the SOS button ensures reliable communication,even from a distance,to help in emergencies. •【Simple & Easy to Use】Plug the receiver into an outlet and simply press the panic button to request help,perfect for seniors,disabled,or bedridden individuals needing assistance. •【Versatile & Convenient Call Button】The call button comes with a lanyard,allowing it to be worn around the neck or attached to a walker,chair,or bedside,making it accessible at all times. Specifications: •Model: C20 •Call button size: 60x34x11.5mm •Receiver size: 90x56x20mm •Call button battery: 1 x CR2032 button cell (included) •Working distance: 80m (open space) Note: •The transmitter shown in the picture is for rendering only (not included). •The wireless signal can be affected by obstacles. The more obstacles,the more serious the loss of signal. Package included: •3 x Receivers •2 x Call Buttons (with Battery) •1 x English User Manual •Other things not included