What's in the box:

ZTTO MTB Moutain Road Bike Bicycle Waterproof Tail light Cycling Front Rear Light (Blue)

Life waterproof fear of rainy days, rainy days easy to ride. 24 hours runtime, no worry anymore.

Features:
High brightness, more safety. Night riding requires a fine taillight.
One button to switch six modes, you can switch it as you want.
Press the switch with one button and gently press it to switch to bright light mode.
USB fast charging, various ways.
Light and small, easy to carry.
IP6 waterproof and dustproof, not afraid of rainy days.
Power display function, green indicator to remind the remaining power.

Specifications:
Material: ABS+PC
Color: black, red, purple, yellow, blue (optional)
Item size: 40 * 30 * 30mm / 1.2 * 1.2 * 1.2in
Item weight: 50g / 1.8ounce
Package size: 150 * 68 * 40mm / 5.9 * 2.7 * 1.6in
Package weight: 93g / 3.3ounce

Packing List:
1 * Tail light
1 * USB Cable
1 * Sitting Rod Bracket
1 * Silica Gel Band
1 * Tighten The Band
1 * Instruction