Model Number: LJ-4 Key Specifications/Special Features: New laser projection virtual keyboard with wireless Bluetooth for IOS Mac, iPad, iPhone, Android cell phone, tablet PC, blackFeaturesWireless laser projection keyboard with Bluetooth connection,Built-in battery and which works with Android, Windows, Mac and iOS.a Glance...Virtual laser keyboard Bluetooth ultra-portable built-in batterySpecificationsBluetooth version: 2.0 with HID Profile Ver. 1.0Keyboard light source: Red laser diodeProjection size: 241mm x 101mmProjected keyboard location: 97.9mm from keyboard deviceKeystroke sound: Built in buzzer (Mute Possible)Visibility: Good contrast up to 1800 LUXDetection rate: 400 characters per minuteDetection algorithm: Multiple key strokes
Required projection surface: Non-reflective, opaque flat surface
Power source: Built in battery
Battery size: 700mAh
Compatible software: Windows XPvista/7/ 8, IOS (iPhone 4/5s/5c and iPad), Android 3.1 and higher, MAC OS X
Language: English

3.1 x 0.8 x 1.6 inches

3.4 ounces