Features1[Tail Light Design] Super bright LED light at the rear of the bike saddle, waterproof, working time up to 36 hours (steady mode). 5 lighting modes to ensure safe riding at night. 2[Memory Foam] This bike saddle is made of a special sponge layer that conforms to your body and is highly elastic, providing cushioning for a comfortable ride. 3[Uniform Force] Wide bicycle saddle, increase contact area, even force. The upturned design has a strong sense of wrapping, so that your hip is more evenly stressed. 4[Breathable] The hollow breathable holes design of the bicycle saddle is more comfortable and reduces the heat sense and sweating rate in the intimate area, suitable for long time riding. 5[Ergonomic Design] Padded bike cushion with ergonomic streamlined design and narrow front to prevent leg friction and allow thighs to move freely while riding. 6[Waterproof] Thickened bike cushion has a PU leather surface that is waterproof, so you don't have to worry about getting wet inside. Suitable for ordinary bike or electric bike.SpecificationItem Type: Bike SaddleMaterial: PU Leather, Sponge, ABSBattery Type: Lithium Battery (Shipped with Built in Battery)Battery Capacity: 500mAhPackage List1 xBikeSaddle1 x Data Cable