Function: 1. [MULTIFUNCTIONAL TOOL] The digital altimeter is based on azimuth and barometric sensor electronics and displays bearing, direction, clock, temperature, weather forecast and altitude. 2. [BACKLIT DISPLAY] The digital altimeter has a very bright backlight that allows you to see the readings clearly on the LCD display regardless of the environment you are in. 3. [ABS HOUSING] The ABS housing of the digital altimeter has good wear resistance to ensure internal components. 4. [PORTABLE SIZE] The special haka design of this digital altimeter makes it easy to carry this device during various outdoor sports. 5. [SIMPLE OPERATION] This digital handheld altimeter is operated za keys, with responsive keys, very convenient for outdoor use. Specification: Item Type: Digital Altimeter Barometer Material: ABS Battery: 1 CR2032 button battery (supplied without battery) List of packages: 1 x Digital Altimeter Barometer 1 x Manual