Wireless Mouse Wearable Finger Mouse Bluetooth-compatible Optical Sensing Ergonomic Design for Smartphones LaptopsFeatures: 100% brand new and high qualityAdjustable velcros strip to fit your finger size.Can be used on any surfaces. No mouse pad is required.Ergonomical design - reduce fatigue effectively.Mini Cute Wireless Finger Rings Optical Mouse 1200 Dpi.Best gifts for professionals and game fans.Plug-and-Play, no installation needed.Specification: Colour: BlackMaterial: PlasticPower: 1x AAA battery(not included)Operating distance: approx. 10 m / 393.7 inSize: Approx. 6x3x3 cm / 2.36x1.18x1.18 inPackage Includes: 1x Wireless Finger Mousenote: Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size.