Main Features:<br />Waterproof case + 2400mAh backup battery for Xiaomi Yi sport DV<br />Backup battery: Input 5V / 1A， output 3.7V / 2.4A<br />Extending Xiaomi Yi action camera battery life<br />Can be seamlessly installed into the back of the camera<br />Capacity: 2400mAh<br />Waterproof case using high light transmission material<br />Up to 30m diving depth waterproof<br />Comes with a 1/4 inches adapter， compatible with most sport camera accessories<br />Fit for Xiaomi Yi action camera<br /><br />Note:<br />Camera showed in the pictures is not included in the package.<br /><br /><br /><br /><br />    Specifications<br />General<br />	 Apply to Brand : Xiaomi                                                  <br />                        Compatible with : Xiaomi Yi                                                  <br />                        Accessory Type: Screw， Battery， Backdoor Housing， Mount Adapter， Protective Cases/Housing， USB Cable， Mounting Base Holder                                                  <br />                        Material: Metal， Plastic                                                  <br />                        Battery Capacity : 2400mAh                                                  <br />                        Battery Type: Rechargeable battery                                                  <br />                        IPXX Rating: 30M underwater                                                  <br />                        Waterproof: Yes                                                  <br />                        For Activity: Skate， Snowboarding， SkyDiving， Aviation， Wakeboarding， Surfing， Motocycle， General Sports， Boating， Film and Music， Universal， Kayaking， Bike， Dive， Rock Climbing， Hunting and Fishing                                                	<br />Dimension and Weight<br />	 Product Weight : 0.230 kg                                                  <br />                        Package Weight : 0.29 kg                                                  <br />                        Product Size (L x W x H): 19.7 x 4.5 x 8.5 cm / 7.74 x 1.77 x 3.34 inches                                                  <br />                        Package Size (L x W x H): 21 x 6 x 10 cm / 8.25 x 2.36 x 3.93 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Waterproof Case， 1 x Mount Base， 1 x Long Screw， 1 x Extensive Backdoor Housing， 1 x 2400mAh Backup Battery， 1 x USB Cable， 1 x 1/4 Adapter， 1 x Lock Buckle for Backup Battery                                                	<br /><br /><br /><br />                                                <br />