MoKo Armband for iPhone 8 / iPhone 7 / 6s / 6, Sweatproof Luminous LED Sports Armband Adjustable Arm Belt with Key Holder for Safe Night Running, Cycling, Walking (Fits Cellphones up to 4.7 Inch) PREMIUM MATERIAL - Made of TPU + Lycra + PU leather, this lightweight armband provides maximum protection for iPhone 8 / 7 / 6s / 6 and other smartphones up to 4.7 inch. LED DESIGN - No battery needed, the 8 lights can realize infinitely luminous by continued moving. Be seen & safe during night running, cycling, climbing, walking. HIGH SENSIBILITY - Touch screen design, you can call, text, take photos and play games anytime. Ideal option for hands-free outdoor activities. PERFECT FIT - Built-in Key holder. Precise earphone holes allow you to enjoy music freely while exercising. Adjustable hook and loop strap suitable for different groups. IPX8 CERTIFIED - Heat-resistant, cold-resistant, sweat-resisting. Waterproof protection up to a depth of 100 feet (30m).