Features Portable lanyard: the lanyard at the top left end of this digital altimeter can be connected to the lanyard, making this device more portable in various outdoor sports. The lanyard for product delivery makes this device more convenient to carry. MULTIFUNCTIONS: Digital altimeter. This product is based on electronic azimuth and barometric sensor technology. Displays the digital full screen display of azimuth, direction, clock, temperature, weather forecast and altitude. FOR OUTDOOR ACTIVITIES: Providing comprehensive and accurate information for outdoor sports enthusiasts is an ideal and simple equipment for outdoor sports enthusiasts. Anti-scratch ABS: Excellent ABS material possesses impact resistance, scratch resistance, environmental protection. With back light: super bright background lighting, you can clearly see the display on the LCD in any environment. Specification: Item Type: Digital Altimeter Material: ABS Battery: 1 x CR2032 button battery (not included). Package list: 1 x barometer. 1 x neck strap. 1 x user manual (English language not guaranteed) Package List 1 x Barometer 1 x Lanyard 1 x User Manual