Mini Wireless Projection Virtual Bluetooth Laser Keyboard for Smart phone PC Tablet Laptop UPGRADED virtual laser projection keyboard: more stable and smarter; to enhance buyers usage experience, we change the mini USB port to micro USB port. MULTIFUNCTIONAL: this keyboard has been equipped with mini Bluetooth speakers, which support voice reporting and music playing LONGER WORKING TIME: We upgraded our battery from 600 mAh to 1000 mAh. It works longer! BUY 2 SAVE 10%: We love our customers and want them to love us, too. You won't find a wireless charger at this price with high quality. Buy for a close friend or loved one and save together! We use ORIGINAL LG rechargeable batteries, which is the safest rechargeable battery we can find for you!