Don"t fumble around for your iPhone while riding your bike. The Runtastic Bike Case attaches to your handlebars or stem in minutes without tools. Mount it in portrait or landscape position to best view your phone. Use the popular Runtastic Road Bike or Mountain Bike apps along with the Runtastic Speed and Cadence Sensor and the Runtastic Bluetooth Combo Heart Rate Monitor (available separately) to turn your smartphone into a complete cycling computer for training. A shockproof hard-shelled case on the outside and foam cushioning on the inside protect your iPhone against bumps. The plastic screen cover keeps splashed mud and water off your phone"s display while offering excellent touchscreen operation. Foam inserts create perfect fit for iPhone 4, 4S, or iPhone 5.