Main Features:<br />? Bluetooth version: 4.0 (2.4 - 2.48GHz)<br />? Bluetooth distance: 15 - 30m<br />? Standby time: 6 - 12 month<br />? Chip: CC2541<br />? Material: ABS<br />? Supported operating system: Android 4.3 version (and above ) / iOS<br />? Powered by CR2032 button battery (included in the product)<br />? Two-way anti lost and bidirectional search<br />? It's a great intelligent home helper， prevent your kids or things from getting lost <br /><br />    Specifications<br />General<br />  Material: ABS                                                 <br />Product Details<br />  Power Source: Others                                                  <br />                        Color: Black，Blue，Pink，White，Yellow                                                 <br />Basic Information<br />  Product weight: 0.007 kg                                                  <br />                        Package weight: 0.036 kg                                                  <br />                        Product Size  ( L x W x H ): 3.00 x 3.00 x 0.90 cm / 1.18 x 1.18 x 0.35 inches                                                  <br />                        Package Size(L x W x H): 8.00 x 9.00 x 2.00 cm / 3.15 x 3.54 x 0.79 inches                                                 <br />Package<br />  Package Contents: 1 x Bluetooth 4.0 Anti-lost Alarm， 1 x English User Manual                                                  <br /><br /><br /><br />                                            <br /><br /><br /><br /><br />                                                <br />