: INBIKE Color: wired black (white light, green light) material: plastic Use battery type: CR2032 button battery Life time: about 500 hours Features: 2.8-inch wide viewing angle; smart chip; stable performance; waterproof; easy control in touch mode; backlight; multi-function; three different function interfaces; for two bicycles; automatic support; automatic wake-up; low energy consumption; Portable; time display function Waterproof rating: IPX5 (but do not immerse in water) Product accessories: 1*code table+4*strap+1*rubber ring+1*base+2*foam pad+1*magnet+1*wireless probe+1*instruction Screen size: 2.8 inches Product size: 6*4.4*1.5cm Product weight: 87g Specifications: 1. Intelligent chip control: stable performance, data is not lost when power off, and the reading is accurate. 2.2.8-inch super large screen: the screen size is increased by at least 50%, FSTN material screen, large viewing angle. 3. Waterproof IPX5: High waterproof level, supports riding in the rain, but do not immerse in water. 4. Highlight backlight display: backlight function, easy adjustment, clear data, safer night riding. 5. Super battery life: a CR2032 button battery with large battery capacity and no less than 500 hours of battery life. Package Included: 1 * code meter 4 * strap 1 * rubber ring 1 * base 2* sponge pad 1 * magnet 1 * wireless probe 1 * instructions