Main Features:<br />- Bluetooth version: V3.0<br />- Transmit distance: 10m<br />- Intercom effective distance: 500m<br />- Intercom function: Yes<br />- Support intercom riders: 2<br />- Talk time: 8Hour<br />- Standby time: 200Hour<br />- Power supply: 5V<br />- Rated working current: 5V / 500mA<br />- Built-in battery capacity: 500mAh<br />- Waterproof function: Yes<br />- Expansion card capacity (Max.): No<br />- Interface: 1 x mini USB<br /><br />    Specifications<br />General<br />  Accessories Type: Intercom                                                  <br />                        Material: ABS                                                  <br />                        Avaliable Color : Black                                                  <br />                        Applicable Car Brand: Universal                                                  <br />                        Applicable Models: Universal                                                 <br />Dimension and Weight<br />  Product weight: 0.053 kg                                                  <br />                        Package weight: 0.200 kg                                                  <br />                        Product size (L x W x H) : 23.8 x 4.4 x 2 cm / 9.35 x 1.73 x 0.79 inches                                                  <br />                        Package size (L x W x H): 20 x 16 x 3.5 cm / 7.86 x 6.29 x 1.38 inches                                                 <br />Package Contents<br />  Package Contents : 1 x Earphone， 1 x Charging Cable， 4 x Adhesive Tapes， 1 x English User Manual                                                 <br /><br /><br /><br />                                                                                            <br />