SHOWME Laser Projection Virtual Keyboard review - Gearbest.com

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Product link ： http://goo.gl/hUVuaD Description： Battery capacity: 5200mAh Input: DC 5V 2A Output: DC 5V 2.4A Battery working time: 30 hours Battery charging time: 3 hours Frequency range: 2402 - 2480 MHz Channel: 79 Modulation: GFSK Compatible with: iOS 6.0 and above, Android 3.0 and above Not recommended for use in direct sunlight