Wireless bicycle LED lamp with turn signal function. The device is mounted on the bike's seat post. Significantly enhances road safety through signaling direction changes. Specifications: waterproof design for turn signal 2 lighting modes: steady light and flashing mounting of the lamp on the seat post using a rubber strap control via a wireless remote mounted on the handlebars (mounting the holder with a rubber strap) remote power supply: CR2025 lamp power supply: built-in 500mAh battery 3.7V (charging USB cable included) quick connect/disconnect system for remote control and lamp Product packaged in plastic packaging, ready for shipment.