Never break your stride with the SF-T7515 Smart Treadmill with Auto Incline by staying connected with Bluetooth and MP3 technology right at your fingertips. The SF-T7515 Smart Treadmill with Auto Incline is packed with state-of-the-art technology that will keep you engaged and connected. The large backlit LCD monitor displays: time . distance . speed . calories . incline . and heart rate. The treadmill is equipped with 12 preset interval programs that manipulate time . speed . and incline. There are 3 countdown modes to target different workout