Specifications:
Mounting Placement : Seatpost
Power Supply : USB
Battery capacity : 900 mAh
Charging time : about 3h
Working time : about 2-3.6h
Voltage : 3.7V

Features:
High-brightness lamp beads: High brightness, effectively improving the safety of night riding.
Set your own light mode: 5 light mode options. You can change different modes according to your needs and occasions to get the best lighting experience and protect you.
USB rechargeable : The turn signal tail light is USB rechargeable.
Tweeter: 120 decibel loudspeaker, safe to remind passersby, safer night riding.
Waterproof bicycle tail light: The tail light is made of waterproof material to ensure safe use in rainy days.
Remote control indicator light: lightweight and durable bicycle tail light, which can be installed on all bicycles, children's bicycles, and adult bicycles. It can also be used as helmet light, backpack light, warning light, etc.