Long battery life 900mAh large-capacity battery, supports long-term operation, and includes a USB-Type C cable, which can be quickly charged on any device with a USB port.Wireless remote control 5 modes With a convenient and easy-to-use wireless remote control, you can easily switch 5 modes according to your needs: Turn left/Turn right/Red light constant/Red light flashes/Red+Yellow light flashes.Not afraid of rain the design of the dust-proof and waterproof protective plug of the charging port allows the rear bicycle light to have a waterproof function, and it can be used normally even if it rains.Easy to install elastic rubber bracket design, suitable for most bicycles.Installation and disassembly can be easily completed within 30 seconds.10.5 x 3.6 x 2.8cm is a compact and portable size, weighing only 58g, which is very convenient to carry or store.Packing list1x Rear bike light, 1x USB Charging Cable, 2x Rubber straps, 1x remote controls.