REINEO MPBH550 is super bright LED bicycle light, smartphone holder, powerbank & bike bell.
The functional design of 4in1 is not only lightweight, but also very practical.
Light modes: GLARE/LOW LIGHT/STROBE. Up to 550 lumens. Up to 8 hours of lighting.
Suitable for smartphones up to 6.4"
Powerbank capacity: 4000 mAh
Powerbank inputs&outputs: USB A 2.0 (5V/1A) + microUSB B (for charging & bike bell only) 
Max volume of the bell: 130 dB