Otyty Bike Tail Light - 180-degree wide viewing angle with visibility up to 150 meters. The 100 lm LED lights provide bright output that is visible in foggy or rainy conditions and on dark nights without being dazzling. - Handlebars remote operation with four modes. The wireless remote lets you switch modes while riding. Four modes available: Left Light, Right Light, Red LED Warning Light, SOS. The remote control on the handlebar is easy to use for the cyclist during cycling. - USB rechargeable Li-ion battery. 500 mAh capacity. Fully charges in about 2 hours and can operate for around 5 hours under constant shine. No need to replace batteries weekly. Includes a USB charging cable compatible with a computer, power bank, or any USB port. - Wide compatibility and applications. Suitable for mountain, MTB, and road bikes. Designed for outdoor riding and provides enhanced visibility in varied riding conditions. - Practical use scenarios. - Commuting at night in urban traffic to improve day or night visibility. - Nighttime mountain or road riding where extra signal and warning light are beneficial. - Foggy or rainy weather to maintain visibility to drivers and other cyclists. - Gift potential. A reliable outdoor riding accessory that makes a thoughtful Christmas or special occasion gift for friends and relatives.