Product Features:<br />Bottle diameter：17.5 - 19.5mm<br />Operating temperature: 5 → - 50 →<br />Operating voltage: 3.7V<br />Battery capacity: 600mAh<br />Charging voltage: 5V<br />Charging current: 500mA<br />Noisy: ＜60db (distance: 1M)<br />Cap on the bottle above 4.9cm<br />Electronic monitoring， automatically vacuum， built-in vacuum pump<br />Automatically supplementary pumping to always maintain a stable vacuum inside the bottle<br />With dual functions of split or combination， you can use it to many bottles of wine， and easy cleaning<br />Automatic Tilt Shut-off Feature to ensure the safe use<br />Wine storage time records to show the best time to drink<br />Always shows the updated temperature<br />Built-in battery: portable to use， long standby time<br />LCD display: convenient and practical<br /><br />    Specifications<br />Specification<br />	 Type: Safety， Novelty， Practical                                                  <br />                        For: Adults                                                  <br />                        Material: Plastic                                                  <br />                        Occasion: Office， Home                                                  <br />                        Color: Black                                                	<br />Dimension and Weight<br />	 Product weight   : 0.095 kg                                                  <br />                        Package weight   : 0.315 kg                                                  <br />                        Product size (L x W x H)   : 8.0 x 4.8 x 6.8 cm / 3.1 x 1.9 x 2.7 inches                                                  <br />                        Package size (L x W x H)  : 18.3 x 11.5 x 6.0 cm                                                	<br />Package contents<br />	 Package contents: 1 x Wine Preserver， 2 x Silicon Rubber Sealers， 1 x Stopper Box， 1 x USB Cable(100cm)， 1 x English User Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />                                                <br />