Features: Keyboard-mouse converter. Support for A-ndroid i-OS. Notice:Don'for t upgraded to i-OS13.4 Users of A-ndroid system and i-OS 13.4 can use normally. Owing to i-OS13.4 system compatibility mismatch, which caused the failure of Q1 and devices of other brand name alike. For users who have for t upgraded, please disable automatic updating function in your mobile device and suspend upgrading until the problem is solve Thanks for your supporting and please feel free to contact us if you still have any questions Specifications: Vibration mode: no vibration Applicable products: mobile phones, tablets Size: 10x3x12CM Colour: Black Material: ABS Notes: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1xQ1