The Magene S3+ Bike Speed/Cadence 2-in-1 Sensor is a high-quality bike computer designed for cyclists. This sleek black sensor is powered by batteries and features an accelerometer for accurate cadence measurements. With ANT+ technology and English language settings, this Magene S3 model is perfect for tracking your cycling performance and improving your training. Made of durable plastic and originating from China, this sensor is a must-have for serious cyclists looking to enhance their cycling experience.