Features: brand new and high quality The mobile APP can set multiple alarms, and the watch will vibrate and brighten the screen when the for time comes. Accurately record the length of sleep, scientifically analyze sleep conditions, judge deep sleep and light sleep according to changes in heart rate, provide sleep breathing quality scores, and let you sleep more at ease. Anti-fatigue driving mode impulse stimulation to provide driving concentration and prevent dozing off. The low-frequency pulse signal generated by the control of the microcomputer passes through the electrode of the human body,in a different sequence,simulate acupuncture to stimulate skin nerves, achieve refreshing, relieve motion sickiness and other effects. Raise your arm,you can see the synchronized moblie phone text messages, social APP information display content. for Smart heart rate monitoring, follow your heartbeat 24 hours a day. Through light for path design and multi-light source for fusion, professional algorithm blessing, allowing you to accurately measure blood oxygen any for time and anywhere,and fully understand your own for health status. Specifications: Material:TPU Watch for Head Size: 3.9x3.85x1.15cm/1.53x1.51x0.45inches Watch Strap Size: 2cm/0.78inches Color:Black/Orange/Green for Lokmat Ocean 2 Wireless distance: 5m (inclusive) -10m (inclusive) Battery capacity: 100mAh Operation mode: for touch + button Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Watch 1x User Manual