BlackBerry Leather Swivel Holster for BlackBerry 8800, 8820, 8830 (Burnt Sienna) Built-in grooves constructed of hard plastic run along the front and back insides of the case to protect the trackball Convenient swivel clip; Rotates vertically, horizontally and to various degrees in between for maximum comfort Proximity-sensing technology; Saves power and maximizes battery life by automatically shutting off the screen Proximity-sensing technology; Can activate different notification settings for phone, email and other applications based on in-holster and out-of-holster profiles Lambskin leather exterior