Bluetooth Laser Projection Keyboard

This Bluetooth Laser Projection Keyboard is the world’s most advanced virtual laser projection keyboard & piano. In just a second, it can turn any flat surface into your keyboard or piano. Standard 78 keys QWERTY layouts. More Accurate - English QWERTY keyboard layout, the keyboard layouts of current laser projection keyboards are square keys with no space in between, it’s easy to mistype unwanted keystrokes. So we design this round buttons layout to fix this problem, you won’t hit the wrong key again. Power Bank Function - Built-in Premium A-grade rechargeable lithium ion battery cell 2500mAh can charge your phones and other devices through it’s USB port. Sound Feedback Adjustment - There are total of 5 sound levels remains as adjusted when device is turned off and on; To increase sound level: Tap and hold “FN” key and tap ”RIGHT” arrow key; To decrease sound level: Tap and hold “FN” key and tap ”LEFT” arrow key. Projection Brightness Adjustment - There are total of 4 brightn