ECSEM Charger cable Compatible with Polar Unite Smartwatch. Complete 2 tasks with 1 cable using our charging/data cradle. Connect the cable to your computer's USB port to recharge your Compatible with Polar Unite Smartwatch and to transfer data to and from your computer. This cable also pairs with an optional AC adapter(500mAh-1A) Product Features: 1, the output short circuit protection 2, over-voltage overload filter protection 3, the use of imported components, real machine test aging and high safety performance 4, anti-jamming performance 5, DC ripple is small, high efficiency, fast charging 6, the working temperature is low, long service life. Features: Line with 20 new pure copper wire will not heat to ensure the safety of the user's personal safety. Small and novel, easy to carry, faster transmission, worry and save trouble! Seller Service : All ECSEM products have been checked one by one before sending to Amazon warehouse, please rest assured and enjoy shopping. if you get a defective item, please contact our email at the first time, we are responsible for all quality-related issues. We will do our best to provide the best pre-sales and after-sales services.