This is a powerful bicycle mileometer, easy to install, convenient to use, large screen, clear navigation routes, riding without getting lost, more secure. Features: Support multiple route planning methods, imports to the mileometer with one click, and never get lost when riding. Compact size and light weight, won't bother your riding. Fully fitted screen to prevents fogging inside the mileometer. Rich cycling data, supporting customized display. Automatic backlight at night, adjustable in three gears. Fivestar positioning, faster and more accurate, Beidou+GPS+GLONASS+GALILEO+QZSS, selected fine quality positioning chips, supporting AGPS quick auxiliary positioning. Supports binding multiple sensors, each ride, and automatic connection. USB rechargeable design, large capacity battery, long working time. Through APP, the mileometer can synchronously display phonecalls, text messages, and APP push informations. And functions of the mileometer can be set through the app. Support multiple automatic function settings, including automatic recording, automatic pause, automatic shutdown, and so on. No need to operate the mileometer during riding. Specifications: Main color: black Material: plastics Battery: 3.7V, 500mAh BT: 5.0 Waterproof: IPX7 Screen size: 2.6in Item size: 88 * 59 * 19mm / 3.5 * 2.3 * 0.7in Item weight: 67g / 2.4ounce Package size: 148 * 94 * 27mm / 5.8 * 3.7 * 1.1in Package weight: 135g / 4.8ounce Packing List: 1 * Mileometer 1 * Rope 1 * USB Cable 1 * Bracket 1 * User Manual