XoomBot James Bond Style Smart Phone Power Bank Stylus Ballpoint Pen for Android Type Micro USB Connector Metallic surface in black color. Handy combo design - Stylus, ballpoint pen and spare smartphone battery 800 mAh rechargeable battery inside; the perfect emergency backup power Twist to reveal and conceal the ballpoint pen (black ink) Micro USB port supports Android phones, tablets, smart watches, no need of a charging cable. Plugs into any USB port (computer, wall charger, external battery pack, etc) to recharge battery inside the pen