OSOYOO-Black-Wireless-Laser-Projection-Bluetooth-Vitual-Keyboard-for-Iphone-Ipad-Smartphone-and-Tablets

Specification:
Bluetooth version: 3.0, HID profile Ver.1.0
USB interface: USB 2.0, USB HID Ver.1.0
Keyboard light source: Red laser diode
Keyboard layout: About 19 mm tilt, QWERTY layout
Keyboard size: 100 x 240 mm
Projected keyboard location: 100 mm distance from device
Required projection surface: Non-reflective, opaque flat surface
Detection rate: 350 Characters per minute
Operative surface: Any flat surface
Work environment: 0 ~ 35 Deg / 90 % RH
Save environment: -5 ~ 35 Deg / 90 % RH
External power source: USB power / less than 5V 1A
Power source: Built-in Li-polymer rechargeable battery
Battery size: 1000mAh
Battery working time: 200 min
Battery charging: 120 min
Frequency range: 2402 - 2480 MHz
Channel: 79
Modulation: GFSK
Compatible with latest operating systems: Window XP / Windows 7 or higher, LINUX, iPad, iPhone, Android 2.2 or higher and all Bluetooth HID compliant mobile device.
Color: Black

Package include:
1 x Laser Projection Bluetooth Virtual Keyboard
1 x USB Charging Cable
1 x User Manual