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Electronic whistle

Protection level: IP54 Weight: 65G (without charger, packing box and other accessories) Specification: 133*φ25mm
Hotline: 86-523-89190333
E-mail: 76122668@qq.com
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Parameters
technical parameter:
 
Colour: Black
 
Working temperature: -20℃-+60℃
 
Relative humidity: ≤85%(25℃)
 
Tone simulation degree: 99%
 
Sound way: long beep/quick short sound/quick long sound
 
Sound decibel: >120db
 
Charging power supply: 5V1A
 
Static working current: <400UA
 
Power supply: polymer lithium battery
 
Power protection: overcharge, overdischarge, overcurrent, short circuit
 
Power capacity: 500MAH
 
Operation mode: touch the button, toggle the switch
 
Charging time: 3-4 hours
 
Continuous working time ≥ 2 hours
 
Charging method: dedicated lithium battery charging template constant current trickle charge
 
Protection level: IP54
 
Weight: 65G (without charger, packing box and other accessories)
 
Specification: 133*φ25mm
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