Removu RM-R1 Live View Remote for GoPro HERO3/HERO3+/HERO4 and GoPro Hero4 Session (Black) Product Details Style: RM-R1 Brand: Removu Product Dimensions: 3 x 4 x 4 inches Item Weight: 8 ounces Shipping Weight: 9.1 ounces Item model number: RM-R1 Batteries: 1 Lithium ion batteries required. Wi-Fi live view + remote control 2.0 inch high resolution display 3-hours operating time Wearable design & mountable to camera Playback your scenes right on your wrist Style: RM-R1 The wrist-worn REMOVU R1 Live View Remote for GoPro HERO3 / HERO3+ / HERO4allows you to operate the camera and view a live image through its 2″ LCDdisplay. It allows you to operate any of the camera's setting, includingrecord start and stop. In addition, image overlays show important data likerenaming battery life and Wi-Fi signal status. The remote is powered by alithium polymer battery estimated to last up to three hours, which rechargesvia USB. Complimenting the take-anywhere nature of the GoPro, the R1 is water-and impact-resistant. In addition to recording, the R1 will also play backfootage already recorded.