(2 Pack) Design for various Mobile Phones under 7.2 inches, also suitable for Pedometers and Smart Watchs, more steps for po-ke-mon GO (Adventure Sync), etc. Easy to installation and support 2 mobile phones. (2 Pack) Quick Steps Earning Device : It (Model - Poke Ball plus)can earn more than 8500 steps in an hour with auto shake, and the step counter won’t affect sleep when shaking at night. Help you earning walking distance in po-ke-mon Go. (2 Pack) Safely shake the phone without being affected by magnetic force. No harmless to phones. The product will not scratch the hand and mobile phone and the plastic bracket is wear-resistant. Use Method?After the product is connected to the USB power supply, put it into the mobile phone. Then push the pedometer back and forth with the hand, and the product will swing, as if sitting on a swing. When the product starts to shake, it can continue to shake. (2 Pack) Exquisite packaging can be used for holiday gifts.Customer Service Support, if you have any product problems, please feel free to contact us. We are happy to supply support for you within 24 hours.