ITEM NAME:Multifunctional Wireless Bicycle Stopwatch Outdoor Set Tool Waterproof D1G8 Description 100% brand new quality Material: ABS Main color: black Voltage: DC3V Operating temperature: -10 to 60 degrees Celsius Size: about 55x46x18mm (length * width * height) Multifunctional wireless bicycle computer, including ambient temperature display, overspeed alarm function, clock function, stopwatch function, etc Four live window columns display current speed, distance traveled, horseback riding, calories traveled, current time and date. Large screen design and ultra-wide operating temperature Simple installation and setup Stylish appearance, exterior lighting, waterproof design, portable, easy to disassemble Header is designed independently and can be removed at any time The head can be rotated to facilitate the installation of the crossbar / vertical handle Stopwatch highlighted white at night Use CR2032 battery (not including battery) Quality first, best service. Customers are our friends. Stylish design, 100% brand new, high quality! Note: 1. For taking pictures, please allow slight color differences Package Included: 1 bicycle stopwatch 1 launcher 1 mounting bracket 2 cable ties 1 sticker pad 1 sensor 1 instruction manual.Multifunctional wireless bicycle computer, including ambient temperature display, overspeed alarm function, clock function, stopwatch function, etc. Stopwatch highlighted white at night. Stylish appearance, exterior lighting, waterproof design, portable, easy to disassemble.