Adjustable Running Sports Gym Armband Case Cover for Blackberry Z 10 / Q 10 (Black) + Blue VanGoddy Headphones With MIC This durable, lightweight armband case keeps your Phone secure and protected. Full screen protector allows full touch screen functionality Provide excellent protection during sport, such as running, biking, jogging, walking, working out etc. Adjustable armband, fits the arm circumference: 12.0 - 15.5 inches, lets you adjust your arm band for maximum comfort. Package includes Vangoddy brand headset with MIC.