Unbranded Mountain Bike Smart Seat Post Bicycle En Alliage D’aluminium Tube De Selle Capteur De Frein Feu Arrière Tige De Selle Réglable 30.4 / 31.6mm

100% brand new and high quality

Features:
Made of high quality aluminum alloy, strong and durable.
Built-in stop light, will not fall off, no need to worry about losing.
With on-off switch, effective power saving.
Three warning light modes, more user-friendly.
Good waterproof effect.
2 in 1 design of seat post stop light, ensures your safe ridding at night.
Taillight Seatpost only,other accessories demo in the picture is not included.

Specification:
Lamp Beads: LED
Seat Tube Diameter: 30.4mm, 31.6mm optional
Mode: brake induction + constant light + slow flashing
Battery Capacity: 500mAh
Charging Method: USB
Input Voltage: 5V-0.3A
Working Time: only braking for 30h, always on for 10h
Height: 35cm
Material: Aluminum Alloy
Size: app.13×5.1×1.5cm/5.12×2.01×0.59in
Color: Black
Quantity: 1 Pc

Note:
No retail package.
Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you
Package Contents:
1 x Taillight Seatpost