SINGCALL Home Security Bugalr Alarm System Call Button Pager Wireless Flash Strobe Siren SOS Warning System for Toilet

J008:1.Transmission frequency:433MHz 2.Built in-backup battery 3.Sound Loud: 120dB 4.Sound Time: 5 minutes 5.Working temperature: -20°C-55°C APE520C: 1.Design with square and round, flexible and simple 2.Calling by touch, easy and convenient 3.360 degree water-proof, call at any time and place 4. 86