[Fits Phones Under 6.5 Inches]: Compatible with various smartphones under 6.5 inches. [No Harm and No Noise]: Made of smooth plastic material that won't scratch your phone or device. Equipped with a metal wheel on both sides to ensure quiet operation, minimizing noise that could disturb sleep during nighttime use. The support plate with a rubber band can securely hold two phones at once, allowing you and your family to track steps quietly. [Supports 2 Phones]: Unlike other models that support only one phone, this design allows you to share step-tracking activities with family or friends. [Easy to Install & Basic Function]: Powered via USB (cable included). Simply place your phone on the bracket, secure it with the rubber band, connect the power supply, and gently push to start automatic swinging motion for step tracking. [Multipurpose Use]: Ideal for mobile apps that require motion, such as virtual pet hatching or fitness challenges, by simulating natural phone movement. Features: Magnetic Type: Desk Holder Model Number: Mobile Shaker Compatibility: Universal Charger: Cable Charger Color: Black Material: Plastic Package Contents: 1 x Mobile Phone Shaker Note: Light reflection and screen display differences may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3 cm.