The HX-A100 Wearable Full HD Camcorder is designed to easily capture and share videos of your everyday active life from your point-of-view. The compact, lightweight design of the A100 makes it comfortable to wear when shooting sports or events. By setting the camera on the included Ear Hook, you"ll enjoy hands-free shooting without a helmet. A Multi-Mount option is also available for mounting the camera to a helmet or backpack. The waterproof design enables even greater shooting freedom in situations where the camera might get wet. The A100"s built-in WiFi functions allow you to broadcast live video with simultaneous Full-HD recording. You can even easily upload videos to SNS (Social Networking Services) using a smartphone or tablet. Despite its compact size and lightweight design, the A100 achieves excellent image quality. The A100 features a host of image-enhancing technologies including a bright F2.5 lens, 1/4.1" BSI Sensor, and Advanced Image Processing LSI. Together they empower this wearable camera to capture clear, low-noise videos in both bright and dim lighting situations. Microphone Monaural Speaker Dynamic type Still Recording Format JPEG (DCF/Exif2.2) Uses SD - SDHC - SDXC memory media cards Uses IEEE 802.11b/g/n / Frequency 2.4 GHz band for WiFi Includes HD Writer software, Earhook, Armband Case, Extended Band Adjuster (Large) USB 2.0 interface port Dimensions (W x H x D) [Camera] Approx. F26.5 x 66 x - mm (1.04 x 2.60 x - inch) / [Body] Approx. 59.5 x 94 x 25 mm (2.34 x 3.70 x 1.0 inch)