Main Features: ● Modern sleek portable design ● 50 select-able ringtones with LED light flashing and vibration receiver ● 5-level adjustable volume 0 dB to 110 dB ● Long wireless working range up to 300 M plus ● Instant sound a ringtone with vibration when the elderly press the SOS button ● Expandable to add additional SOS calling or receivers ● Smart memory, auto save the selected ringtones when power off ● Easy to carry and use ● Low battery power consumption, standby more than 1 year |