Emergency SOS Button Safety Alarm Bracelet For The Elderly Children Patient

 
Features:
100% Brand new and high quality!
Bracelet design， convenient to wear and use;
Quick SOS button to alarm
Low power consumption， long battery usage.
 
Specifications:
Working voltage: DC 6V
Working current: 4mA±1mA
Working frequency: 433.92MHz 
Frequency deviation: ±0.2MHz
Transmit power: 10mW 
Transmission distance: 100m
Encoding chip: EV1527
Modulation mode: ASK
Working temperature: -25 to +75 degree C.
Color: Black， White
 
Package includes:
1 x Safety Alarm Bracelet
 
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