The Chrome Battery Now Wireless Smartphone Connectivity batteries allow you to stay connected with your battery at all times and monitor performance on your phone. Wirelessly connects to the app using RF, increasing the reliability and accessibility for users; Apple and Android connectivity. This new technology in the power sports battery category provides an integrated Bluetooth circuit board that allows temperature and charge monitoring. No need to dissasemble battery in order to check voltage or temperature. Just open the app when you are within range and it will connect to your battery and display the updated voltage and temperature. Recieve alerts if your battery has high or low voltage as well as a monthly report to inform you how your battery performed that month. Constructed with lead calcium alloy and absorbed glass mat technology that allows for a completely maintenance-free and high-performance operation; rigorously tested to ensure safety, OEM compatibility, effectiveness and optimal performance.