Features: 1. Automatic Pedometer: Recommended for those who want to increase the number of steps! With this phone swing device, you pretend to run, it automatically records steps. 2. Suitable for phones under 6.4 inches: Suitable for most 6.4-inch phones or smaller, applicable to most apps such as smart bracelets, Wechat Movement, etc. It can also be used as a mobile phone holder. 3. No damage and no noise: High-quality metal bracket is smooth and without burrs, will not scratch the hand and mobile phone, low noise, does not affect sleep when shaking at night. 4. Compatible with two phones: The front and back of this swing device can hold mobile phones. 5. Easy to install and use: USB charging or 4 AA batteries (not included) for power supply. Note: 1. The actual color may differ slightly from the image due to different monitors and light effects. Please allow slight deviations due to manual measurement. 2. Battery is not included. 3. Do not insert the battery when USB charging. Specification: Type: Phone swing device Material: metal + plastic Power supply: USB charging or batteries (4 AA batteries must be prepared by yourself). Suitable phone: Recommended for mobile phones within 6.4 inches. Dual phone version: Both front and back accommodate mobile phones Packing list: 1 x Phone swing device 1 x Charging cable