north edge mar2 smart watch tatic waterproof outdoor %E6%99%BA%E8%83%BD%E9%98%B2%E6%B0%B4%E6%89%8B%E9%8C%B6 %E6%88%B0%E8%A1%93 %E9%81%8B%E5%8B%95%E6%88%B6%E5%A4%96%E7%94%A8%E6%89%8B%E9%8C%B6 Cycling sunglasses * Built-in ambient light sensor

* Built-in ambient light sensor to automatically adjust the brightness of the taillights

climb slopes of up to 25 degrees

2) If cadence and speed data are required at the same time

13 or Later*As of March

Output: USB 5V/2A

north edge mar2 smart watch tatic waterproof outdoor %E6%99%BA%E8%83%BD%E9%98%B2%E6%B0%B4%E6%89%8B%E9%8C%B6 %E6%88%B0%E8%A1%93 %E9%81%8B%E5%8B%95%E6%88%B6%E5%A4%96%E7%94%A8%E6%89%8B%E9%8C%B6 Cycling sunglasses * Built-in ambient light sensor*Multiple language versions *Bluetooth control*Alarm function *Multiple sports modes: running cycling basketball football rope skipping walking, etc. *Built in heart rate blood pressure sleep mode blood oxygen test, etc. *weather forecast *Smart reminder: call SMS WeChat Whatsapp reminder *IP68 waterproof function *1. 4" color screen *Multi color selection male female suitable Device: Mars2 Shape: Circular Dimension: 45*45*14mm Weight: 60g Colors: