Máy chiếu laser ảo và bàn phím cho máy tính bảng

Search term: Portable, Virtual Laser Keyboard, Mini, Bluetooth Projection, For Computers, For Mobile Phones Features: English QWERTY keyboard layout. Truly portable design, perfect for on-the-go. Full size key pitch and shortcut keys for ease of operation. Superior durability (No moving component inside). Built-in Lithium-ion Polymer rechargeable battery formobility and convenience Compatible with latest operating systems, for Windows XP & later, for Windows Phone 7 & later, for iOS4 and later, for Android 2.1 and later, for Mac OS X & later. Descriptions: It works via Bluetooth HID, connection to main devices, like Tablet PC, Smartphone, Desktop PC and Video game . Built-in infrared laser transmitter to project the standard keyboard on the working surface. Small size, easy to carry Specification: Pattern Projector keyboard layout: Approx. 19mm Pitch Light source:red laser Keyboard(mouse) size: Approx. 240x100mm (wxh) Project Surface: Non-reflective, opaque flat surface Recognition Rate: Approx. up to 350 characters per minute External Power Supply: USB Power / less than 5V 500mA Battery & Capacity: Lithium-ion Polymer Battery,700mAh(MA X) @ 3.7V Battery Operating Time: Approx. 150min Battery Charging Time: Approx. 90min Bluetooth(bm20730): V3.0, HID Profile Ver 1.0 Frequency Range: 2402-2480MHz Channel: 79 Modulation: GFSK Product Size (mm): 78mm x 40mm x 20mm colors: silver & black Package Included: 1 x Laser projection keyboard 1 x USB Cable 1 x User’s Manual 1 x Quick Start Guide