Specifications:

Material: plastic
Bulb Type: T6 LED
Brightness: 400lm
Battery Capacity: 2800mAh
Working hours: 6-12H
Lighting modes: full brightness, half brightness, flashing, yellow brightness flashing yellow
5 kinds of speaker sound effects: long press the buzzer key to change the mode
Head dB: 130 dB
Charging type: USB
Phone holder: width 50-80mm mobile

Feature:
Compatible with 4 functions-bicycle headlight, mobile phone holder, power bank, bicycle.
Headlight with 5 different lighting modes depending on your preference. Include full brightness, half brightness, flashing, yellow brightness and yellow flashing
2800mAh battery, you can charge your mobile phone in an emergency
Switching five sound modes in one button, up to 130db, loud enough to alert others in front of you
Universal bike phone holder will securely fit almost any cell phone up to 4-6.3 inches
When you lock your bike in the parking area, you can easily carry it in the pocket or backpack for charging and anti-theft

Packing list:

1 x Bicycle Headlight
1 x USB cable