Most Exercise Spin Bikes use this monitor for Stationary Bikes with "head phone jack" look connection tips. Compatible with bikes such as Sunny, L-Now, Snode, Exerpeutic, Pleny, Yosuda, Faafuu, and other domestic models. Both speedometer and pulse tracking connections are through 3.5 mm female jacks on the back of the monitor. Adapters (NOT INCLUDED) might be needed if the device also has female jacks (rare cases). 2 x AAA Batteries Not Included - Required. Note: Without Heart Rate function. Color: as shown. Material: plastic. Package Contents: 1 x Exercise Bike Computer. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.