MULTI LAYER SPRAYING PROCESS:Fine Carving Every Detail Character,More Distinguishable , Permanent Wear Resisting BACKLIGHT:The Backlight of Engraving is Clearly Mapped to Each Character MEET YOUR ASSISTANT: Built In High Fidelity Voice Microphone MOTION GOPERATING MOVE FREELYE: Equipped With Gyroscope Core Compensation Algorithm ,to Identify Gesture Posture In the Movement- Anti-tremor Anti-shake . Farewell to the Mouse Hand,No Lines and the Shackles of the Desktop ,Suitable for More Scenes Colour:black Material:plastic Size: 16 x 4.2 x 1.8CM Package Contents: 1 * air mouse remote Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.