Attach the Tactacam 4.0 to your bow, crossbow or firearm, push the power on auto record button to start recording. Push the button again when you want to stop recording. Yes its that simple. The Tactacam 4.0 is easy-to-use and doesn't interfere with your hunt. The Tactacam 4.0 is compatible with the Tactacam App which allows you to connect to your camera from your smart phone to turn it on and off, view photos and videos and transfer them to your device for easy sharing with your friends or on social media. Tactacam 4.0 also features 5x zoom, 2.7k HD video, low light sensor and a 360 degree mic. Combined with Tactacam's newly designed shell, quick change mode button, external battery indicator and rugged water resistant construction... This camera is made to perform and will stand up to the rigors of your hunt. Tactacam is designed for you using the best electronics available. Easy to use; 1 touch operation with vibration indication allows for easy camera operation. This small hunting video camera was built with an ultra high quality lens and low-light sensor. Instead of using a fisheye lens, which pushes the images away Tactacam uses a unique lens design, providing a view similar to what we see with the human eye. Tactacam 4.0 now features an improved 5x zoom to bring your target even closer than ever! -Ultra HD 2.7k resolution @ 30 fps, 1080p-60fps and 720-120fps -Rechargeable cold weather lithium battery provides up to 2.5 hours of record time (extra batteries available) -Charging USB 2.0 and 110-120 volt AC outlet -USB 2.0 connection to Mac and PC -HDMI hookup for TV & hi-def monitors -Video Aspect Ratio: 16:9 Format H.264 for Facebook and YouTube -Storage: Micro SD card up to 64 GB (not included) -8 GB card included with package -A Class 10 MicroSD card up to 64 GB is required. -Not all Class 10 microSD cards have the same data write speeds. Due to the higher bit rate capabilities and to support new features of Tactacam cameras, we have provided a list of recommended cards that provide the best experienc SanDisk Extreme 32GB microSDHC (SDSDQXL-032G).