The Coros ACC Heart Rate Monitor offers a comfortable and user-friendly alternative to traditional chest straps. This heart rate monitor is designed for ease of use, featuring an adjustable fit and a removable sensor for quick cleaning. Equipped with the latest multi-channel optical sensor, it ensures precise heart rate measurement. The device supports up to three simultaneous connections with Bluetooth-enabled devices, making it versatile for various workout setups. With wear detection, it automatically pairs with devices for new workouts, providing a seamless experience. The monitor operates for up to 38 hours on a single charge and can last up to 80 days in standby mode. It is rechargeable using a magnetic USB charging cable. Comfortable and easier to wear than a chest strap Adjustable fit with a removable sensor for easy cleaning Advanced multi-channel optical sensor for accurate heart rate measurement Connects with up to three Bluetooth-enabled devices simultaneously Automatic pai