Features: 100% and high quality. The dot matrix display, the cool graphics tail light display, the brake dot matrix display, and the laser parallel lines display of this wireless remote control turn light. With Rechargeable Lithium battery, 3.7V 650mAh, can work up to 10 hours continuously after one time charge. One CR2032 battery for remote control, which can work up to Three months. One CR1225 battery for the brake launcher, which can work up to Six months. Specifications: Model: A112 Material: plastic Color: black Light type: LED Waterproof: IP55 Size:8*5.5*2cm Remote control: diameter: 5.5cm, high: 2.5cm Handle: 3cm Package included: 1 x Bike Light 1 x Remote control 1 x Mount 2 x Line 1 x USB Cable Notes 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Due to personal measurement technique is different, there may be 1-3 cm error of the physical.Thank you