JUSHENG Spovan Outdoor Digital Watches With Leather Band MG-01 Sports Watch With Altimete Barometer Compass Application. Power save function. Low battery and battery charging display. Date display. LED backlight. 50M waterproof. Daily automatic synchronization times from satellite. Bluetooth 4.0 HRM. Compass. Stopwatch(1/100s). Countdown timer. Daily alarms. Navigation mode. Sports mode. LED display mode switch(black--&gt;white). DST. Hour chime. 12/24 hour format. Calendar. Auto time zone. Dual time.