Main Features:<br />1. With clear signal? good wave and great drive power<br />2. Can work on 3.3V-5V voltage<br />3. Easy to install with a  fixed bolt hole<br />4. Sensitively to the surrounding environment and detect the vibration quickly<br /><br />    Specifications<br />General<br />  Type: Development board                                                  <br />                        Material: Plastic? Copper and PCB                                                 <br />Electronic Components<br />  Operating Voltage: 3.3-5V                                                 <br />Weight and Size<br />  Product Weight: 0.005 kg                                                  <br />                        Package Weight: 0.056 kg                                                  <br />                        Product Size(L x W x H): 3.3 x 1.6 x 0.3 cm / 1.30 x 0.63 x 0.12 inches                                                  <br />                        Package Size(L x W x H): 11.5 x 7 x 1.0 cm / 4.52 x 2.75 x 0.39 inches                                                 <br />Package Contents<br />  Package Contents: 1 x Module? 1 x DuPont Cable ( 20cm )                                                 <br /><br /><br /><br />                                                                                            <br />