Feature:1. Adopts penetrating heart rate sensor with high precision and fast induction.2. You can use the receiver to connect to for iOS/Android phones (not including the receiver).3. Cardio ear clip heart rate pulse sensor for heart rate monitoring on cardio fitness equipment.4. With sensor, the clip can be directly connected to sports machines, such as steppers, treadmills, etc.5. Small in size and light in weight, it is easy to carry and store, very convenient to use.Specification:Item Type: Ear Clip Pulse Monitor Material: ABSProduct Color: BlackCable Length: Approx. 1300mm / 51.2inProduct Weight: Approx. 11g / 0.4ozFunction: Penetrating heart rate sensor, high precision and fast induction..Package List:1 xEar Clip Pulse Monitor