Featuring both traditional USB and Micro USB interfaces, this multi-functional pen can serve as an external drive for your Android smartphone.  Acquired with the touch screen pen function, the product offers you precise and convenient control of your touch screen devices.  With an elegant metallic body design, this slim size pen is easy to carry in shirt pocket with a clip on the side.

• OTG drive with Micro USB interface (for smartphone) at top.
• USB drive with USB interface (for PC) in the middle.
• Touch screen pen at bottom.
• Offer precise and convenient control of touch screen devices.
• Ball pen style.
• Elegant metallic body.
• With a clip on the side.
• Slim size.
• Convenient to carry.
• Classy and functional design.
• External drive for Android smartphone.
• Expand Samsung, MI and other Micro USB port smartphone storage space.
• A+ memory chips inside with optional memory capacity (e.g. 2GB, 4GB, 8GB, 16GB, etc.).
• Support different file formats.
• Logo engraving for corporate promotion.
• Compatible with Smartphones with Android OS4.0 (e.g. Samsung: Galaxy Note, Galaxy Nexus, Galaxy S1, Galaxy S3, Galaxy S3 I9100, I9103, I9108, Sony: LT18i, LT22i, LT26i, LT28i, Nokia: N810, c6 N8 808 603 E7, Toshiba: TG01, OPPO201, Motorola: XT910, Mi2 or 2S), etc.