Otterbox RBB2-8900S-20-C5OTR provides full access to all the keys of your BlackBerry Curve 8900 smart phone. You can access the sync/charge and headphone jacks via a silicone plug. Sound is transmitted through the case, so you can enjoy your music or podcasts without having to remove your phone from the case. The case also provides added bump, drop, and shock protection, so you can rest assured that your phone will be safe from the elements. With acoustic vents on the receiver and loud speaker, you can make and receive calls without having to take your phone out of the case.