Peloton Interactive is working on a digital heart-rate armband, according to a Bloomberg report. Confidential details and images of the device, as revealed by Bloomberg, show that the armband will come in small and large sizes and will pair wirelessly with Peloton’s cycles and treadmills, in addition to the phones, tablets and televisions that run the company’s workout app. After pairing it with Peloton fitness equipment for the first time, the device would automatically do so via Bluetooth, says the report.