Ainiv Smart Bike Tail Light with Brake Sensor, Round Dual Mount, 5 Lighting Modes, USB C Rechargeable Bicycle Taillight, IPX6 Waterproof, Safety Warning Strobe Rear Bike Light for Night Riding Mount

• 【5 Lighting Modes】The Ainiv intelligent brake-sensing taillight features 20 ultra-bright LED beads in a ring layout, emitting a striking red warning beam visible from 100 meters away, enhancing nighttime riding safety. It offers 5 intelligent lighting modes: constant light, slow flash, fast flash, strobe, and breathing flash, easily switchable with a single button to adapt to diverse riding scenarios and individual needs.
• 【Intelligent Braking Sensing】The Ainiv intelligent taillight features intelligent braking and motion sensing functions. When braking, the brightness significantly increases and remains for 3 seconds to warn vehicles behind, then returns to normal after 3 seconds. It automatically turns off and goes into sleep mode to save power after being stationary for 30 seconds, and is awakened by vibration. Simply press and hold for 2 seconds to turn it on or off; operation is intelligent and convenient.
• 【IPX6 Waterproof, Aluminum Alloy Material】This bicycle taillight boasts an IPX6 professional waterproof rating and is made of high-quality aluminum alloy, effectively resisting rain and dust, easily handling various weather conditions. It is wear-resistant and impact-resistant, able to withstand bumps and collisions during outdoor riding, maintaining stability and reliability even after long-term use, whether on mountains, roads, or professional riding.
• 【500mAh Battery, USB-C Rechargeable】Our bicycle taillight features a built-in 500mAh high-capacity battery that fully charges in just 3 hours, providing 5-15 hours of continuous use and eliminating the hassle of frequent battery changes. It easily handles short and long-distance night rides. Equipped with a USB-C charging port, it can be charged with any USB device, such as a phone adapter, power bank, or computer.
• 【Easy Installation】The Smart Taillight comes with two brackets and a silicone strap, compatible with saddles and seatposts, suitable for most bicycles. The silicone strap and quick-release buckle design allow for tool-free installation; the quick-release buckle is easy to install with a simple snap and twist, facilitating storage and charging. The quick-release structure is robust and durable, and the detachable taillight makes it easy to carry and use with flexibility and peace of mind.

Ainiv Smart Bike Tail Light How to Use & Care 1.Mount the Light Choose the suitable bracket (saddle or seatpost). Secure it firmly using the included silicone strap, then twist the light onto the mount until it locks in place. 2.Cleaning & Maintenance Gently wipe with a soft, damp cloth. Avoid immersion in water, strong chemicals, or abrasive cleaners. Specifications Material: Aluminum Alloy + PC + Silicone Color: Black Dimensions: 4 × 3.4 × 3.4 cm Weight: 86 g Battery Capacity: 500mAh Charging Port: USB-C Charging Time: ~3 hours Runtime: 5–15 hours (mode dependent) Waterproof Rating: IPX6 Mounting Options: Saddle / Seatpost Packing List: 1 × Ainiv smart bike tail light 2 × Mounting brackets 1 × Charging cable 1 × Hex wrench 1 × Packaging box Care & Precautions: 1.Charge only with the provided USB-C cable or certified accessories. 2.Avoid prolonged exposure to extreme temperatures or direct sunlight. 3.Ensure the light is securely fastened before each ride. 4.For long-term storage, recharge the battery every 3 months to maintain its health. 5.Designed for bicycle use only. Not suitable for motor vehicles. 6.The bracket installed under the saddle has an inner width of 4.8cm. Please decide whether to purchase it based on the actual distance under your vehicle's saddle. Notes: 1.Actual battery life may vary depending on usage patterns and environment. 2.The light's visibility can be affected by ambient lighting and viewing angle. 3.For optimal brake-sensing performance, ensure the mount is stable and the sensor area is unobstructed.