Features: *Extremely long battery life of 28 hours: strong battery life, meet long-term outdoor use, no frequent charging trouble *Accurate satellite time adjustment: support multiple satellite positioning, automatic time calibration, be sure accurate and reliable data *2.4-inch high-definition large screen: equipped with a 2.4-inch display, data reading is clear and intuitive, and viewing is more convenient *Backlight always-on design: adjustable backlight and support always-on mode, still clearly visible at night or in dark environments * Simple and portable: simple installation, wireless design, GPS speed measurement, eliminating the trouble of wiring (note that it can only be used where there is a GPS signal) Specifications: *Product Name: Bicycle Wireless Computer GPS Speedometer and Odometer *Material: Plastic *Size: approx.83*50*20mm *Color: Black *Weight: about 230g Package Content: 1 x Bicycle Wireless Computer 1xUSB cable 1 set of accessories Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data(1cm=0.39inch) 【EXTENDED USAGE TIME】 With a battery life of 28 hours, this speedometer is designed for long-distance cyclists who prefer uninterrupted tracking during their journeys. 【RELIABLE DATA ACCURACY】 Equipped with advanced satellite technology, it automatically adjusts time settings for precise data collection on every ride. 【USER-FRIENDLY DISPLAY】 The 4-inch large LCD screen provides clear visibility of your cycling metrics, making it easy to monitor your performance . 【ENHANCED NIGHT VISIBILITY】 The always-on backlight feature ensures that you can read your stats clearly even in the dark, keeping you informed during evening rides. 【EASY SETUP & PORTABILITY】 This wireless GPS speedometer is simple to install and transport, making it a great choice for cyclists looking to track their performance without the mess of wires.