One British design student created an amazing sports bra. The bra aims to make running easier and more fun by matching your music to your heart rate. Victoria Sowerby, a student at Northumbria University, created the Keep Beat sports bra.

It has a back pocket for your smartphone, special conductive fabric that monitors your heart rate, and technology that adjusts your music to let you know if you’re pushing yourself too hard or not hard enough. The whole thing is made with high-performance fabrics that won’t trap sweat or bacteria. Set your target heart rate through its proprietary app, and Keep Beat speeds up your music if your heart is pumping too fast, and slows the music down if you’re not working hard enough.

When Beyoncé starts to sound more like Barry White, you’re going too slow. If her voice speeds up so much she sounds like Alvin and the Chipmunks, you’re going too fast. Through these cues, Keep Beat lets you adjust your pace and stay on target without fiddling with your phone or any other gadget.