Product Features:
1. Product charging method: manual power generation + USB charging
2. Led super bright emergency lighting
3. Electronic compass direction positioning
4. Hand crank emergency phone charging
5. Real-time monitoring: temperature, humidity, air pressure, altitude
Estimated shipping time: 15 days
$5 shipping cost
Product parameters:
1. Battery capacity: 3.7V 450mAh polymer lithium battery
2. Specifications of LED lights: ¢ 5; white hair white 2500mcd;
3. Output power: DC 5V 350mA Input power: DC 5V 500mA
4. Temperature range: -10~50°C Humidity range: 20%~95% Air pressure range: 500~1100hpa Altitude range: -700~5000 meters
