Blast Action Precision Motion Sensor Attaches to your action camera housing or waistband and uses Bluetooth Smart technology to connect to your smartphone or tablet. The sensor knows when you?re moving and dynamically powers-up the sensor and engages the patented motion detection algorithms to capture your important 3D action metrics in real-time Capture video and track movements instantly, even store movement data when the sensor is out of range, everything will download to your smart phone or tablet as soon as you reconnect. Easily share your highlights with your friends via Facebook, Twitter and E-mail with just one touch.