Features:1. Automatic Steps Earning Device: Recommended for those who want to increase the number of walks With this phone swing device pretend you are running it record steps automatically.2. Fit for Phone Under 6.7inch: Suitable for most 6.7inch phone or less apply to most of the APP like smart bracelet Wechat movement etc. It can also be used as a mobile phone holder.3. No Harm and No Noise: High quality metal bracket is smooth and burr-free wont scratches hand and mobile phone low noise wont affect sleeping when shaking at night.4. For Two Phone: The front and back of this swing device can hold mobile phones.5. Easy to Install and Use: The swing device can be charged by USB cable.Notice:1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement.Specification:Type: double mobile phones shakerProduct principle: electromagnetic principleMaterial: Plastic + MagnetsApplicable phone: within 6.7inPower supply: USBincludes:1 x mobile phones shaker1 x charging cable