Features: English QWERTY Keyboard Layout: Experience seamless typing with our Laser Projection Keyboard, designed in a familiar English QWERTY layout for efficient use. Portable and Compact Design: Measuring at just 78mm x 40mm x 19mm, this keyboard is designed for portability. Slip it into your pocket or bag and take your typing anywhere. Full-Size Key Pitch and Shortcut Keys: Enjoy comfortable typing with full-size key spacing and make use of built-in shortcut keys for enhanced productivity and efficiency. Superior Durability and Reliability: Equipped with a Lithium-ion Polymer rechargeable battery for up to 120 minutes of use per charge. The absence of moving parts ensures reliability and longevity. Versatile Compatibility: Compatible with major operating systems like Windows XP & later, Windows Phone 7 & later, iOS8 & later, Android 4.0 & later, and Mac OSX & later, this keyboard is adaptable for various devices. Specifications: Model: KB560S Keyboard Layout: QWERTY layout (approximately 19mm pitch) Light Source: Red laser diode Projection Size: Width: 240mm, Height: 100mm Work Platform: Non-reflective, opaque plane Recognition Rate: 350 characters/min Battery: Lithium-ion battery 700MAH (MAX) @3.7V Battery Working Time: Approximately 120 minutes Battery Charging Time: Approximately 120 minutes Charging Power: USB input /5V 1A BT: V3.0, HID PROFILE VER 1.0 Frequency Range: 2402-2480MHZ Channel: 79 Modulation Mode: GFSK Product Size: 78mm x 40mm x 20mm Product Weight: Approximately 60g Package Includes: 1 x Laser Projection Keyboard 1 x USB Cable 1 x User Manual