Position 1: closedMode 2: OTG + Charging. Mode 3: OTG aloneAnd frequently asked questions: If Mode 2 OTG + charging disabled when charging does not apply Separate OTG application appropriated position 3;OTG switched again interrupted after switching equipment;Some devices can not read OTG, the plug and what equipment you can start; Some tablet may be because the original charger voltage is too low, meet free of charge then not pull down the line, in the case of power failure the switch backwards several times, and finally stopped at the position 2 switch normal, if not you try several times. Or simply change to a charger around 5.3V.Brand: ACASISProduct Type: H027The color blackCharacteristics:1. Small, light and easy to carry. Just like the size of a pen shape, easy to carry, not the space. Micro-USB interface, support hot-hot-plug drawn. Data transfer speeds up to 480 Mbps.2. Supports OTG function and electricity charge. Compatibility, support for, Win8, Win7, Vista, XP, Windows 2000, ME, Linux and other operating systems.3. The mobile tablet apply, support Micro-USB port phones, tablet PCs have OTG function, only mobile phones, television set-top boxes.4. USB wide spacing.5. Particular material and environmental protection, environmental protection ABS scale high density material, non-toxic, environmental, shape technology, durable.6. Standard Micro-USB OTG interface cable, Micro-USB interface for all common mobile phone must also support OTG function.Package Contents: 1* Mobile Tablet PC Charging CableOnly the above package content, other products are not included.Note: Light shooting 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.